Reducing Nipple, Brass Fitting 1/2" to 3/8" Adapter
Main Diameter
: 1/2"
Branch Diameter
: 3/8"
Thread Pattern
: Male × Male
Body
: Sleeve (Doppelnippel / Muffe)
About this item:
- High-quality brass – corrosion-resistant
- Dimensions: 1/2" AG x 3/8" AG – precise fit
- Reduced double nipple – versatile use
- Ideal for plumbing and heating installation
- Durable quality – for professionals and DIY
Guaranteed Secure Checkout
| Item number | BONI-42380 |
| Brand | KLASEBO |
4.84
No images or videos found in reviews
Ronny Schaffarc
BONI-34474
Main Diameter
:
1 1/4"
Branch Diameter
:
1"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Good product, I would recommend it.
BONI-34474
Main Diameter
:
1 1/4"
Branch Diameter
:
1"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Olaf Bröcker
BONI-34453
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Works perfectly for my needs. Everything is fine and already in use.
BONI-34453
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Zhiguo Chen
BONI-34871
Main Diameter
:
1 1/2"
Branch Diameter
:
1"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting works well for connecting different pipe sizes in my plumbing system. The threads fit securely and it handles both hot and cold water without issues. Good for basic installations.
BONI-34871
Main Diameter
:
1 1/2"
Branch Diameter
:
1"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Gerhard Traut
BONI-34870
Main Diameter
:
1 1/4"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducer does exactly what it's supposed to do—connects different pipe sizes securely. The threads fit well without any leaks in my plumbing setup. Works as expected for basic water line adjustments.
BONI-34870
Main Diameter
:
1 1/4"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Lena Franke
BONI-34447
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
This brass reducer fitting works well for connecting different pipe sizes in my plumbing setup. The threads fit securely, and I haven't noticed any leaks so far. It seems sturdy enough for regular water pressure applications.
BONI-34447
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Klaus Stüwe
BONI-34452
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
This brass reducer fitting works great for connecting different pipe sizes securely. It handled both hot and cold water without any issues, and I haven’t experienced any leaks so far. The corrosion-resistant material seems reliable for long-term use.
BONI-34452
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Nadine Petersen
BONI-34423
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducing nipple works well for connecting different pipe sizes in my plumbing project. The threads fit securely, and it feels solid when installed. I appreciate that it’s suitable for drinking water systems, which gives me peace of mind. It hand...
BONI-34423
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Andreas Mattes
BONI-34424
Main Diameter
:
1 1/4"
Branch Diameter
:
1"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass nipple worked well for my plumbing project. The threads fit securely and it felt sturdy when tightening. No leaks so far, which is what I needed.
BONI-34424
Main Diameter
:
1 1/4"
Branch Diameter
:
1"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Alfred Toporows
BONI-42377
Main Diameter
:
1 1/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
This brass reducer does exactly what it's supposed to do. The threads fit perfectly with standard plumbing connections, and the brass construction feels solid. I used it to connect different pipe sizes in my heating system, and it's holding up well under p...
BONI-42377
Main Diameter
:
1 1/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Christine Liede
BONI-34684
Main Diameter
:
1 1/4"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Good quality, fits exactly as described. Ideal for heating and plumbing installations.
BONI-34684
Main Diameter
:
1 1/4"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Pam Schaab
BONI-42374
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Here’s the translated review:
At first glance, it meets my expectations. I’ll install it soon and check the quality; looks very good!!!
BONI-42374
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Roberto Metz
BONI-42382
Main Diameter
:
1"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducing nipple works well for connecting different pipe sizes in my plumbing setup. The fit is secure and I haven't noticed any leaks. It's reassuring to know it's safe for drinking water systems.
BONI-42382
Main Diameter
:
1"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Andreas Gelius
BONI-34472
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducer does exactly what it's supposed to do. The threads fit perfectly with standard plumbing connections, and I appreciate that it's approved for drinking water systems. Works well for basic plumbing adjustments.
BONI-34472
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Wolfgang Isense
BONI-42369
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Works perfectly, exactly what I needed.
BONI-42369
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Claudia Mößner
BONI-34877
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducing nipple is a solid choice for plumbing projects. It connects different thread sizes seamlessly, and the brass construction feels reliable. I appreciate its versatility for various systems like heating and water lines. It handled the pres...
BONI-34877
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Heike Necke
BONI-34473
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Everything is perfect, the coupling matches what I needed, and the quality seems great.
BONI-34473
Main Diameter
:
1"
Branch Diameter
:
3/4"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Alfred Keding
BONI-42370
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
This brass coupling does exactly what it's supposed to do - connects different pipe sizes securely. I appreciate that it's certified safe for drinking water systems. The threads fit well and it feels solid in hand.
BONI-42370
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Rosemarie Schla
BONI-42378
Main Diameter
:
1 1/2"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
This brass reducer fitting works well for connecting different pipe sizes in my plumbing setup. The threads fit securely, and it seems sturdy enough for standard water pressure. I used it for a hot water line, and it hasn't leaked so far. Just remember to ...
BONI-42378
Main Diameter
:
1 1/2"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Frank Baumgartl
BONI-42388
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting is a solid choice for plumbing projects. It works well for both hot and cold water lines, and the corrosion-resistant material ensures durability. The installation was straightforward, and it feels sturdy once connected. It’s great knowi...
BONI-42388
Main Diameter
:
1/2"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Jeronimo Imke
BONI-34422
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting does exactly what it's supposed to do - connects different pipe sizes securely without leaks. The brass construction feels solid and gives me confidence in my plumbing setup, especially knowing it's safe for drinking water systems. The t...
BONI-34422
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Hubert Veit
BONI-42387
Main Diameter
:
2"
Branch Diameter
:
1 1/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting does exactly what it's supposed to. The threads fit perfectly when connecting different pipe sizes in my plumbing project. I appreciate that it's approved for drinking water systems - gives me peace of mind about water safety. The solid ...
BONI-42387
Main Diameter
:
2"
Branch Diameter
:
1 1/4"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Sebastian Ellbr
BONI-34685
Main Diameter
:
1 1/2"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
A great fitting! It would be even better with cross grooves, but it works perfectly for installing reverse osmosis and a small faucet. Exactly what I needed.
BONI-34685
Main Diameter
:
1 1/2"
Branch Diameter
:
3/4"
Thread Pattern
:
Male × Female
Body
:
Concentric (Flat Reducer)
Jürgen Schäffne
BONI-34446
Main Diameter
:
2"
Branch Diameter
:
1 1/2"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting works well for connecting different pipe sizes in my plumbing setup. The threads fit securely without leaks, and the brass construction feels solid. It handled both hot and cold water lines without issues.
BONI-34446
Main Diameter
:
2"
Branch Diameter
:
1 1/2"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Franz Hauser
BONI-34442
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting feels solid and well-made. It threaded smoothly into my plumbing setup without any leaks. Handles hot water connections just fine so far.
BONI-34442
Main Diameter
:
3/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Annett Jonas
BONI-42389
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass adapter does exactly what it's supposed to do - connects different pipe sizes securely. I've used it in my home plumbing system and haven't had any leaks. The threads fit well and it seems solidly made.
BONI-42389
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Female × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Irmfried Becker
BONI-42371
Main Diameter
:
1 1/2"
Branch Diameter
:
1"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
This brass reducing coupling works well for connecting pipes of different sizes in my plumbing setup. The female threaded design ensures a secure fit, and the brass construction feels sturdy. It’s great knowing it’s safe for drinking water and handles pres...
BONI-42371
Main Diameter
:
1 1/2"
Branch Diameter
:
1"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Ralf Bergenthal
BONI-42381
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Passt perfekt! Habe die Gewinde parallel bekommen, genau wie gewünscht. Gute Qualität aus Messing, hält dicht und macht einen soliden Eindruck.
BONI-42381
Main Diameter
:
3/4"
Branch Diameter
:
3/8"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Helmuth Riegler
BONI-34479
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Quick delivery. Excellent quality and packaging. Highly recommended product and sale! 5++++++!!
BONI-34479
Main Diameter
:
1"
Branch Diameter
:
1/2"
Thread Pattern
:
Female × Female
Body
:
Sleeve (Doppelnippel / Muffe)
Alfred Jackwert
BONI-42383
Main Diameter
:
1 1/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
The brass reducing nipple matches the description perfectly and has good quality.
BONI-42383
Main Diameter
:
1 1/4"
Branch Diameter
:
1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
Christin Göttin
BONI-34426
Main Diameter
:
2"
Branch Diameter
:
1 1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
This brass fitting does exactly what it's supposed to do - connects different pipe sizes securely. I appreciate that it's approved for drinking water systems, which gives me confidence in its safety. The threads fit properly and created a tight seal withou...
BONI-34426
Main Diameter
:
2"
Branch Diameter
:
1 1/2"
Thread Pattern
:
Male × Male
Body
:
Sleeve (Doppelnippel / Muffe)
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4.8
228 reviews
Reviews (228)
Ronny Schaffarc
Good product, I would recommend it.
High-Quality Brass Reducing Nipple
Looking for a reliable solution for your plumbing and heating installations? Our brass reducing nipple is the ideal choice for installers, DIY enthusiasts, and home improvement professionals. This high-quality product enables you to easily and securely connect pipes with different diameters, providing a durable solution for your heating and installation needs.
Key Specifications
Our threaded fitting offers a high-quality solution for your installations. Made from CW617N brass according to drinking water regulations, it guarantees maximum safety and durability. The reducing nipple allows you to connect 1/2" male and 3/8" male threads. This ensures a reliable product specifically designed for use in plumbing, heating, air conditioning, and solar technology.
Technical Specifications
| Material | CW617N Brass according to Drinking Water Regulations 50930-6 |
| Thread Size 1 | 1/2" AG (Male Thread) |
| Thread Size 2 | 3/8" AG (Male Thread) |
| Pressure Range | Up to 16 bar |
| Application Area | Plumbing, Heating, Air Conditioning, Solar |
| Media | Cold and Hot Water, Liquid and Gaseous Media |
Product Features and Benefits
- CW617N Brass: You benefit from a material that meets the highest standards of drinking water regulations.
- Versatile Application: Suitable for plumbing, heating, air conditioning, and solar technology. You can use this fitting in various areas.
- Durable: Suitable for cold and hot water (not for saltwater and chlorinated water). Your installations are protected in the long term.
- Universally Applicable: Can be used for liquid and gaseous media. You have a flexible solution for different requirements.
- Pressure Resistant: Suitable for pressure ranges up to 16 bar. You can rely on a secure connection.
- Rustproof and Corrosion-Resistant: You get a durable product that functions reliably even under demanding conditions.
Advantages of Our Product
- High-Quality Material: CW617N brass guarantees top quality and durability.
- Drinking Water Suitability: Complies with drinking water regulations and is therefore safe for your drinking water installations.
- Versatility: Suitable for various applications in plumbing, heating, air conditioning, and solar technology.
- Durability: Withstands cold and hot water as well as liquid and gaseous media.
- Pressure Resistance: Up to 16 bar pressure range for secure connections.
- Corrosion Resistance: Rustproof brass ensures a long service life.
- Easy Installation: Suitable for installers, DIY enthusiasts, and home improvement professionals.
How to Use
- Step 1: Preparation: Make sure the pipes to be connected are clean and free of damage.
- Step 2: Sealing: Use a suitable sealant such as PTFE thread seal tape or thread sealing hemp to seal the threads.
- Step 3: Assembly: Screw the reducing nipple into the corresponding threads. Make sure the connection is tight and leak-proof.
- Step 4: Verification: Check the connection for leaks by running water or pressure through the line.
Key Specifications
Our threaded fitting offers a high-quality solution for your installations. Made from CW617N brass according to drinking water regulations, it guarantees maximum safety and durability. The reducing nipple allows you to connect 1/2\" male and 3/8\" male threads. This ensures a reliable product specifically designed for use in plumbing, heating, air conditioning, and solar technology.
Technical Specifications
| Material | CW617N Brass according to Drinking Water Regulations 50930-6 |
| Thread Size 1 | 1/2\" AG (Male Thread) |
| Thread Size 2 | 3/8\" AG (Male Thread) |
| Pressure Range | Up to 16 bar |
| Application Area | Plumbing, Heating, Air Conditioning, Solar |
| Media | Cold and Hot Water, Liquid and Gaseous Media |
EU-Responsible Name: Boni-Shop GmbH; Hr. Stanislav Maer
EU-Responsible Street: Wissmannstraße
EU-Responsible House No: 58
EU-Responsible Post Code: 27755
EU-Responsible Town: Delmenhorst
EU-Responsible Country: Germany
EU-Responsible Email: [email protected]
EU-Responsible Phone Number: +49(0)4221 45 777 00
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