Stainless Steel Reducing Coupling 1/2" x 3/8" Female Thread Reducer
https://odoo.boni.tools/shop/boni-42276-160-stainless-steel-reducing-coupling-1-2-x-3-8-female-thread-reducer-20342 https://odoo.boni.tools/web/image/product.template/20342/image_1920?unique=b6eac1d9 sold in last 24 hours
Info about the Product:
- Durable V4A stainless steel – rust-free and stable
- Dimensions: 1/2" IG x 3/8" IG – precise reduction
- Stainless steel reducing sleeve – for lasting connections
- Stainless steel threaded fitting – easy installation
- Perfect for water pipes – high quality
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| SKU | BONI-42276-160 |
| Brand | KLASEBO |
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Reviews loaded: 53
Total attachments: 0
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Gerald Escheric
Sascha Gäth
Hendrik Nerger
Hartmut Helms
Andreas Bründl
Karl-Heinz Spah
Dieter Blattman
Wilfried Korte
Roland Adler
Kaspar Stielner
Rolf Block
Michael Gehrke
Lisa Keilwerth
Jacqueline Heye
Anton Fuchs Jun
Michael Kelch
Staatstheater M
Erik Sudmann
Andrea Cielejew
Simon Schwendem
Thomas Grimmer
Knut Schuengel
Klaus Ritzdorf
Boecker
Olga Jan
Katrina Fiedler
Peter Beckmann
Denise Vogel
Lothar Mäurer
Helga Güra
Want to know more about this product?
Frank T.
14 JulKundendienst
ResponseYes, the thread is a common Whitworth pipe thread in water technology. It is compatible with most standard fittings and connections.
K. Schulz
04 JulKundendienst
ResponseThe fitting is approved for temperatures from -20 °C to +200 °C. It can therefore also be used in freezing temperatures, as long as there is no standing water that freezes.
Klaus M.
27 MayKundendienst
ResponseYes, the reducer is made of stainless steel 316, which is rust-proof and corrosion-resistant. It is ideal for permanent outdoor use and garden irrigation.
Max Mller
04 JulKundendienst
ResponseThe fitting is designed for a working pressure of up to 10 bar. Check the pressure of your high-pressure cleaner; this value should not exceed 10 bar.
DIY-Anfänger M.
03 JulKundendienst
ResponseYes, the reducing coupling is specifically designed to connect pipelines with different internal thread sizes. It has a 3/4" internal thread on one side and a 1/2" internal thread on the other side.
D.
12 AprKundendienst
ResponseThe thread requires additional sealing. We recommend using suitable thread sealing material such as hemp or Teflon tape to ensure a permanent seal.
Laborratte
06 MarKundendienst
ResponseThe coupling is made of stainless steel 316 (V4A), which has good resistance to many chemicals. For specific chemical applications, you should check the material compatibility with the respective chemicals.
N.
03 FebKundendienst
ResponseYes, stainless steel 316 (V4A) is known for its high corrosion resistance, especially against chlorides. This material is therefore suitable for saltwater applications.
Klaus M.
27 JanKundendienst
ResponseYes, the reducer fitting is specifically designed to reduce a 3/4" internal thread connection to a 1/2" internal thread. This way you can connect a 1/2" connection to your 3/4" line.
H. Schmidt
12 JanKundendienst
ResponseYes, the fitting is made of corrosion-resistant stainless steel 316 (V4A) and is suitable for water technology. It meets the requirements for drinking water installations.
M.
25 DecKundendienst
ResponseYes, the sleeve is designed for a working pressure of up to 10 bar. For higher pressures, the fitting would not be suitable.
gartenfreund
24 NovKundendienst
ResponseThe threaded fitting is made of stainless steel 316 (V4A) and is therefore very durable and corrosion-resistant. Permanent installation in the ground is possible, provided there are no aggressive soil chemicals.
G.
15 AugKundendienst
ResponseYes, the sleeve is designed for temperatures from -20 °C to +200 °C and is made of V4A stainless steel. It can therefore remain outdoors even in frost.
Sonnenanbeter
23 JulKundendienst
ResponseYes, the fitting is approved for a temperature range of -20 °C to +200 °C. It is therefore suitable for the usual operating temperatures in solar systems.
user123
01 AprKundendienst
ResponseYes, the reducing sleeve made of stainless steel 316 (V4A) is rust-free and corrosion-resistant. It retains its quality even with prolonged contact with rainwater.
Kundin
24 FebKundendienst
ResponseYes, the reducing sleeve is designed for temperatures from -20 °C to +200 °C. It can therefore be used without problems in heating circuits.
Anonym
04 JunKundendienst
ResponseThe sleeve is made of stainless steel 316 (V4A), which has high resistance. Whether it is suitable for specific chemical solutions depends on the type and concentration of the chemicals.
Meerfreund88
21 MayKundendienst
ResponseThe coupling is made of stainless steel 316 (V4A), making it rust-free and corrosion-resistant. It is therefore also well suited for use with saltwater.
B. Schmidt
05 AprKundendienst
ResponseYes, the Whitworth pipe thread is the standard thread in water technology. The sleeve is compatible with standard water installations.
Heimwerker Pete
15 MarKundendienst
ResponseFor thread sealing, regular hemp or Teflon tape works very well. Special tools beyond the usual plumbing tools are not required.
W.
04 MarKundendienst
ResponseYes, the coupling made of stainless steel 316 (V4A) is rust-free, corrosion-resistant, and approved for temperatures from -20 °C to +200 °C. It can be used without concern in rainwater cisterns.
Ursula K.
18 FebKundendienst
ResponseYes, the reducing sleeve made of stainless steel 316 (V4A) is designed for use in water technology. Therefore, it can also be used for drinking water installations.
H.
29 NovKundendienst
ResponseYes, the fitting is designed for working pressures up to 10 bar. A pump with 9 bar is therefore not a problem.
Gartenfreund M.
06 NovKundendienst
ResponseThe coupling is made of stainless steel 316 (V4A), therefore rust-free and corrosion-resistant. It is durable and ideal for continuous use in garden irrigation.
Gartenfreund
04 AugKundendienst
ResponseYes, this reducing coupling is specifically designed to reduce a 1 1/2" internal thread to a 1" internal thread. It is ideal for your purpose.
Heizungsbauer22
12 JulKundendienst
ResponseYes, the reducer coupling is designed for working pressures up to 10 bar and temperatures from -20 °C to +200 °C. It is therefore suitable for your heating system.
S.
10 MayKundendienst
ResponseYes, the reducing sleeve is designed for water temperatures from -20 °C to +200 °C. It can therefore be used without hesitation in hot water pipes.
do-it-yourself
17 MarKundendienst
ResponseYes, for a tight connection, a suitable thread sealant is absolutely necessary. You can use hemp or Teflon tape.
Gärtnerin B.
16 MarKundendienst
ResponseYes, due to the corrosion-resistant V4A stainless steel, the fitting is also suitable for underground installation. Proper sealing of the threads is particularly important.
Kunde
19 MayKundendienst
ResponseNo, sealing the thread always requires suitable sealing material. We recommend using hemp or Teflon tape to ensure reliable tightness.
Want to see more questions about this product?
Reviews (53)
Leave a Review
Gerald Escheric
Questions (42)
Ask Questions
Frank T.
14 JulKundendienst
ResponseYes, the thread is a common Whitworth pipe thread in water technology. It is compatible with most standard fittings and connections.
Connect Pipes Securely with Our Stainless Steel Reducing Coupling
Looking for a reliable way to connect pipes of different sizes? Our high-quality stainless steel reducing coupling ensures a secure and long-lasting connection. Made from corrosion-resistant V4A stainless steel (316), this threaded fitting guarantees durability and reliability for both cold and hot water applications up to 200 °C. Discover the benefits of this robust and versatile fitting for your installations. Learn about Key Specifications, explore Technical Specifications, review the Product Features and Benefits, check the Advantages, read about How to Use, find Frequently Asked Questions (FAQ), and see Why Buy From Us?
Key Specifications
Our stainless steel reducing coupling provides reliable protection for your pipes, even under extreme conditions. With its ability to connect different pipe sizes and the corrosion resistance of stainless steel, this coupling offers exceptional durability. The high pressure and temperature resistance ensure a long service life, giving you a dependable fitting that protects your installations for years.
Technical Specifications
| Connection Type | Female Thread x Female Thread |
| Connection Dimensions | 1/2" x 3/8" |
| Working Pressure (PN) | 10 bar |
| Temperature Range | -20 °C to + 200 °C |
| Material | Stainless Steel 316 (V4A Steel according to DIN 1.4401) |
Product Features and Benefits
- Rust-Free and Corrosion-Resistant: The V4A stainless steel ensures that your reducing coupling won't rust, even under difficult conditions, providing you with reliable performance.
- Durable: Thanks to the high-quality material, you benefit from a long service life and save costs in the long run.
- Pressure Resistance up to 10 bar: You can use the reducing coupling in demanding applications with high pressure.
- Suitable for Cold and Hot Water: Use the reducing coupling flexibly for your cold and hot water installations.
- Easy Installation: Thanks to the standardized thread, the reducing coupling is quick and easy to install.
Advantages Compared to Other Materials
- Corrosion Resistance: Stainless steel is significantly more resistant to corrosion than galvanized steel or brass.
- Hygienic: Stainless steel is food-safe and does not release substances into the water.
- High Temperature Resistance: Compared to plastics, stainless steel can withstand high temperatures.
- Long Service Life: Stainless steel is more durable than many other materials and needs to be replaced less often.
- Reusable: Unlike welded fittings, the reducing coupling can be loosened and reused if necessary.
- No Additional Seals Required: The stainless steel fittings do not require seals, making them suitable for use up to 200 °C without any issues.
- Durable and Reliable: Offers enhanced longevity and consistent performance, reducing the need for frequent replacements.
How to Use
- Step 1: Preparation: Thoroughly clean the threads of the pipes to be connected.
- Step 2: Sealing: Use thread seal tape or hemp to seal the threads.
- Step 3: Assembly: Screw the reducing coupling onto the threads of the pipes. Be careful not to overtighten the coupling.
- Step 4: Leak Test: Check the connection for leaks by running water through the pipes.
Reviews loaded: 53
Total attachments: 0
Images displayed: 0
Gerald Escherich
08 Jul 2026Sascha Gäth
09 Jun 2026Hendrik Nerger
13 May 2026Hartmut Helms
03 May 2026Andreas Bründl
01 May 2026Karl-Heinz Spahn
09 Apr 2026Dieter Blattmann
02 Apr 2026Wilfried Korte
31 Mar 2026Roland Adler
28 Feb 2026Kaspar Stielner
13 Feb 2026Rolf Block
27 Dec 2025Michael Gehrke
21 Jul 2026Lisa Keilwerth
25 Jun 2026Jacqueline Heyer
12 Jun 2026Anton Fuchs Jun.
20 May 2026Michael Kelch
09 May 2026Staatstheater Mainz
04 May 2026Erik Sudmann
11 Apr 2026Andrea Cielejewski
03 Apr 2026Simon Schwendemann
28 Mar 2026Thomas Grimmer
07 Jul 2026Klaus Ritzdorf
20 Feb 2026Boecker
14 Feb 2026Olga Jan
13 Jan 2026Katrina Fiedler
10 Jan 2026Peter Beckmann
07 Jan 2026Denise Vogel
06 Apr 2026Lothar Mäurer
02 Feb 2026Helga Güra
03 Jun 2026Want to know more about this product?
View all 53 reviewsAsk Questions
Frank T.
I would like to know if the thread is really standardized for standard fittings....
Yes, the thread is a common Whitworth pipe thread in water technology. It is compatible with most standard fittings and connections.
K. Schulz
Can it also be used in freezing temperatures?...
The fitting is approved for temperatures from -20 °C to +200 °C. It can therefore also be used in freezing temperatures, as long as there is no standing water that freezes.
Klaus M.
Can this reducer be used permanently outdoors, for example for garden irrigation?...
Yes, the reducer is made of stainless steel 316, which is rust-proof and corrosion-resistant. It is ideal for permanent outdoor use and garden irrigation.
Max Mller
Can I use the fitting for a high-pressure cleaner as well, because of the pressure?...
The fitting is designed for a working pressure of up to 10 bar. Check the pressure of your high-pressure cleaner; this value should not exceed 10 bar.
DIY-Anfänger M.
For connecting different pipe sizes — only internal thread, does it fit?...
Yes, the reducing coupling is specifically designed to connect pipelines with different internal thread sizes. It has a 3/4" internal thread on one side and a 1/2" internal thread on the other side.
D.
Do I need to seal the thread additionally, or is it already sealed?...
The thread requires additional sealing. We recommend using suitable thread sealing material such as hemp or Teflon tape to ensure a permanent seal.
Laborratte
Can the coupling come into contact with chemicals or is it only for water?...
The coupling is made of stainless steel 316 (V4A), which has good resistance to many chemicals. For specific chemical applications, you should check the material compatibility with the respective chemicals.
N.
For saltwater aquarium equipment – is V4A sufficient?...
Yes, stainless steel 316 (V4A) is known for its high corrosion resistance, especially against chlorides. This material is therefore suitable for saltwater applications.
Klaus M.
I have an old garden pump with a 3/4 inch connection, does this reducer fitting fit a 1/2 inch hose?...
Yes, the reducer fitting is specifically designed to reduce a 3/4" internal thread connection to a 1/2" internal thread. This way you can connect a 1/2" connection to your 3/4" line.
H. Schmidt
Is the reducing sleeve suitable for use in a drinking water pipeline?...
Yes, the fitting is made of corrosion-resistant stainless steel 316 (V4A) and is suitable for water technology. It meets the requirements for drinking water installations.
M.
I have an old pump that makes good pressure. Will it still work with the sleeve?...
Yes, the sleeve is designed for a working pressure of up to 10 bar. For higher pressures, the fitting would not be suitable.
gartenfreund
Can the reduced threaded piece be permanently installed in the ground?...
The threaded fitting is made of stainless steel 316 (V4A) and is therefore very durable and corrosion-resistant. Permanent installation in the ground is possible, provided there are no aggressive soil chemicals.
G.
Can the reducer sleeve stay outdoors in sub-zero temperatures, for example in an outdoor shower?...
Yes, the sleeve is designed for temperatures from -20 °C to +200 °C and is made of V4A stainless steel. It can therefore remain outdoors even in frost.
Sonnenanbeter
I want to connect a solar system that reaches high temperatures – will the coupling hold up?...
Yes, the fitting is approved for a temperature range of -20 °C to +200 °C. It is therefore suitable for the usual operating temperatures in solar systems.
user123
Would like to know if the sleeve also retains its quality permanently in combination with rainwater....
Yes, the reducing sleeve made of stainless steel 316 (V4A) is rust-free and corrosion-resistant. It retains its quality even with prolonged contact with rainwater.
Kundin
Wanted to know if the sleeve can also be used in a heating circuit...
Yes, the reducing sleeve is designed for temperatures from -20 °C to +200 °C. It can therefore be used without problems in heating circuits.
Anonym
Would like to know if the sleeve is also suitable for chemical solutions....
The sleeve is made of stainless steel 316 (V4A), which has high resistance. Whether it is suitable for specific chemical solutions depends on the type and concentration of the chemicals.
Meerfreund88
Wanted to know if the coupling is also okay for saltwater...
The coupling is made of stainless steel 316 (V4A), making it rust-free and corrosion-resistant. It is therefore also well suited for use with saltwater.
B. Schmidt
Is the Whitworth pipe thread of the sleeve also compatible with the common water installations here?...
Yes, the Whitworth pipe thread is the standard thread in water technology. The sleeve is compatible with standard water installations.
Heimwerker Peter
Does it work with regular hemp or do you need special stuff for the thread?...
For thread sealing, regular hemp or Teflon tape works very well. Special tools beyond the usual plumbing tools are not required.
W.
Can the coupling also be used for rainwater cisterns where it can get colder?...
Yes, the coupling made of stainless steel 316 (V4A) is rust-free, corrosion-resistant, and approved for temperatures from -20 °C to +200 °C. It can be used without concern in rainwater cisterns.
Ursula K.
Is it suitable for drinking water connection in the house?...
Yes, the reducing sleeve made of stainless steel 316 (V4A) is designed for use in water technology. Therefore, it can also be used for drinking water installations.
H.
We have a well pump with 9 bar, will the coupling hold up?...
Yes, the fitting is designed for working pressures up to 10 bar. A pump with 9 bar is therefore not a problem.
Gartenfreund M.
Will this part last with continuous use in garden irrigation or will it rust eventually?...
The coupling is made of stainless steel 316 (V4A), therefore rust-free and corrosion-resistant. It is durable and ideal for continuous use in garden irrigation.
Gartenfreund
Our old garden hose is 1 1/2 inches, we want to reduce it to 1 inch — is that suitable?...
Yes, this reducing coupling is specifically designed to reduce a 1 1/2" internal thread to a 1" internal thread. It is ideal for your purpose.
Heizungsbauer22
My heating system runs at 6 bar and heats up to 80 °C, can I use the reducer coupling there?...
Yes, the reducer coupling is designed for working pressures up to 10 bar and temperatures from -20 °C to +200 °C. It is therefore suitable for your heating system.
S.
Suitable for hot water pipes?...
Yes, the reducing sleeve is designed for water temperatures from -20 °C to +200 °C. It can therefore be used without hesitation in hot water pipes.
do-it-yourself
Do you need a seal for the thread, or does it hold like that?...
Yes, for a tight connection, a suitable thread sealant is absolutely necessary. You can use hemp or Teflon tape.
Gärtnerin B.
Can I also lay the fitting in the ground?...
Yes, due to the corrosion-resistant V4A stainless steel, the fitting is also suitable for underground installation. Proper sealing of the threads is particularly important.
Kunde
I have a 1-inch pipe and want to reduce it to 1/2 inch, is the thread tight enough without additional material?...
No, sealing the thread always requires suitable sealing material. We recommend using hemp or Teflon tape to ensure reliable tightness.
Want to ask more questions about this product?
View all 42 questionsAsk Questions
Connect Pipes Securely with Our Stainless Steel Reducing Coupling
Looking for a reliable way to connect pipes of different sizes? Our high-quality stainless steel reducing coupling ensures a secure and long-lasting connection. Made from corrosion-resistant V4A stainless steel (316), this threaded fitting guarantees durability and reliability for both cold and hot water applications up to 200 °C. Discover the benefits of this robust and versatile fitting for your installations. Learn about Key Specifications, explore Technical Specifications, review the Product Features and Benefits, check the Advantages, read about How to Use, find Frequently Asked Questions (FAQ), and see Why Buy From Us?
Key Specifications
Our stainless steel reducing coupling provides reliable protection for your pipes, even under extreme conditions. With its ability to connect different pipe sizes and the corrosion resistance of stainless steel, this coupling offers exceptional durability. The high pressure and temperature resistance ensure a long service life, giving you a dependable fitting that protects your installations for years.
Technical Specifications
| Connection Type | Female Thread x Female Thread |
| Connection Dimensions | 1/2" x 3/8" |
| Working Pressure (PN) | 10 bar |
| Temperature Range | -20 °C to + 200 °C |
| Material | Stainless Steel 316 (V4A Steel according to DIN 1.4401) |
Product Features and Benefits
- Rust-Free and Corrosion-Resistant: The V4A stainless steel ensures that your reducing coupling won't rust, even under difficult conditions, providing you with reliable performance.
- Durable: Thanks to the high-quality material, you benefit from a long service life and save costs in the long run.
- Pressure Resistance up to 10 bar: You can use the reducing coupling in demanding applications with high pressure.
- Suitable for Cold and Hot Water: Use the reducing coupling flexibly for your cold and hot water installations.
- Easy Installation: Thanks to the standardized thread, the reducing coupling is quick and easy to install.
Advantages Compared to Other Materials
- Corrosion Resistance: Stainless steel is significantly more resistant to corrosion than galvanized steel or brass.
- Hygienic: Stainless steel is food-safe and does not release substances into the water.
- High Temperature Resistance: Compared to plastics, stainless steel can withstand high temperatures.
- Long Service Life: Stainless steel is more durable than many other materials and needs to be replaced less often.
- Reusable: Unlike welded fittings, the reducing coupling can be loosened and reused if necessary.
- No Additional Seals Required: The stainless steel fittings do not require seals, making them suitable for use up to 200 °C without any issues.
- Durable and Reliable: Offers enhanced longevity and consistent performance, reducing the need for frequent replacements.
How to Use
- Step 1: Preparation: Thoroughly clean the threads of the pipes to be connected.
- Step 2: Sealing: Use thread seal tape or hemp to seal the threads.
- Step 3: Assembly: Screw the reducing coupling onto the threads of the pipes. Be careful not to overtighten the coupling.
- Step 4: Leak Test: Check the connection for leaks by running water through the pipes.
Key Specifications
Our stainless steel reducing coupling provides reliable protection for your pipes, even under extreme conditions. With its ability to connect different pipe sizes and the corrosion resistance of stainless steel, this coupling offers exceptional durability. The high pressure and temperature resistance ensure a long service life, giving you a dependable fitting that protects your installations for years.
Technical Specifications
| Connection Type | Female Thread x Female Thread |
| Connection Dimensions | 1/2\" x 3/8\" |
| Working Pressure (PN) | 10 bar |
| Temperature Range | -20 °C to + 200 °C |
| Material | Stainless Steel 316 (V4A Steel according to DIN 1.4401) |