Threaded Fitting Brass Reducer 1 1/2" M x 1/2" F
Main Diameter
: 1 1/2"
Branch Diameter
: 1/2"
Thread Pattern
: Male × Female
Body
: Concentric (Flat Reducer)
About this item:
- High-quality CW617N brass – suitable for drinking water
- Dimensions: 1 1/2" AG x 1/2" IG – precise fit
- For heating and plumbing technology – versatile use
- Corrosion-resistant material – high durability
- Stable construction – secure installation
Guaranteed Secure Checkout
| Item number | BONI-42378 |
| Brand | KLASEBO |
4.84
No images or videos found in reviews
Rosemarie Schla
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 ...
Sarah Kriegmair
This brass reducer fitting does exactly what it's supposed to. The threads matched perfectly with my existing plumbing setup. I used it for a hot water line connection and it's holding up well so far. The quality seems good for the application.
Sandra Schabert
I don't understand why these aren't a required standard—they're just perfect!
Wilfried Gehrin
This brass reducer does what it's supposed to do. The threads fit well with standard pipes, and it feels solid when installed. Works fine in my home plumbing setup.
Peter Hüpers
Compact and very useful where space is limited.
Karin Lieblein
This brass reducer fitting works well for connecting different pipe sizes in my plumbing system. It feels sturdy and fits securely, making it a reliable choice for both hot and cold water applications. The threading is precise, and it seals tightly with th...
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)
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)
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4.8
228 reviews
Reviews (228)
Rosemarie Schla
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 ...
Threaded Fitting Brass Reducer 1 1/2" M x 1/2" F
High-quality design for installation in various areas in heating and installation as well as in cold and hot water pipes and heating systems.
Suitable for installers, DIY enthusiasts, and do-it-yourselfers.
Product Features:
- CW617N brass according to Drinking Water Ordinance 50930-6
- Suitable for sanitary, heating, air conditioning, and solar technology
- For cold water and hot water (not suitable for saltwater and chlorinated water)
- Usable for liquid and gaseous media
- Also suitable for vacuum areas
- For pressure ranges up to 16 bar
- Rust-free and corrosion-resistant
- Durable
F = Female Thread
M = Male Thread
" = Inch
1" F x 2"M = 1 Inch Female Thread x 2 Inch Male Thread
To seal the threads, you additionally need a sealing tape or sealing hemp.
Thread Type:
The threads of all pipe fittings are manufactured according to the common standards ISO 7-1/EN 10226-1 (internal and external threads) as well as ISO 228-1 (union nuts of the fittings). The external threads are conical/tapered. The internal threads are parallel/cylindrical. All threads are standardly specified in inches. The threads are sealed with a suitable thread sealing material such as PTFE thread sealing tape or thread sealing hemp.
| Whitworth Pipe Threads for Threaded Pipes and Fittings | ||||
| Thread in Inches | External Thread in mm | Internal Thread / Core Diameter in mm | Threads per Inch | Pitch in mm |
| 1/4" | 13.157 | 11.445 | 19 | 1.337 |
| 3/8" | 16.662 | 14.95 | 19 | 1.337 |
| 1/2" | 20.955 | 18.631 | 14 | 1.814 |
| 3/4" | 26.441 | 24.117 | 14 | 1.814 |
| 1" | 33.249 | 30.291 | 11 | 2.309 |
| 1 1/4" | 41.91 | 38.952 | 11 | 2.309 |
| 1 1/2" | 47.803 | 44.845 | 11 | 2.309 |
| 2" | 59.614 | 56.656 | 11 | 2.309 |
Drinking Water Suitability:
Our brass fittings are listed in the UBA list (UBA = Federal Environment Agency) for drinking water suitable materials in drinking water installation and can therefore be used for drinking water supply.
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
GPSR attachment:
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