Description
The Watts N45BU-M1 (SKU 0009478) is a high-quality water pressure reducing valve designed to deliver consistent, controlled downstream pressure in residential and light commercial plumbing and hydronic systems. Featuring a 3/4-inch Union x Female Pipe Thread (FPT) connection, this valve offers easy installation and serviceability — the union ends allow for straightforward removal and reinstallation without disturbing the surrounding piping.
Key Features
- Adjustable pressure range of 25–75 PSI for versatile system pressure management
- 3/4″ Union x FPT connections for simplified installation and maintenance access
- Compact, durable construction suited for residential and light commercial applications
- Reduces high incoming water pressure to a safe, steady downstream level, protecting fixtures, appliances, and piping
- Watts N45BU-M1 series design with built-in strainer to help prevent debris from affecting valve performance
- Lead-free compliant construction for potable water applications
Specifications
- SKU: 0009478
- Model: N45BU-M1
- Connection Size: 3/4″
- Connection Type: Union x FPT (Female Pipe Thread)
- Pressure Range: 25–75 PSI
- Brand: Watts
Applications
- Residential water supply systems
- Light commercial plumbing installations
- Hydronic heating systems requiring pressure regulation
- Protecting downstream fixtures, appliances, and piping from excessive inlet pressure
Trust Watts engineering to deliver reliable pressure control and long service life. The N45BU-M1 is a go-to solution for HVAC and plumbing professionals who demand performance and ease of installation.









