Product Description
Mueller 521-331 is a black malleable iron reducing coupling designed for plumbing applications. This coupling connects pipes of different diameters, specifically one-half inch to one-quarter inch. It is suitable for use in residential and commercial plumbing systems.
- Durable black malleable iron construction.
- Connections for pipes with varying diameters.
- Versatile for various plumbing applications.
Product Highlights
The Mueller reducing coupling allows for reliable connections between pipes of different sizes.
Product Information
Standard Information
- Manufacturer: Mueller
- Minimum Order Quantity: 1
Technical Specifications
- MPN: 521-331
- Size: 1/2 inch x 1/4 inch
- Material: Black Malleable Iron




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