The McAlpine BN3 White Plastic Backnut with Rubber Washer is a plumbing accessory used to secure a pipe or fitting in place. The backnut is made of white plastic and has a threaded inner surface that allows it to be screwed onto the corresponding threaded end of a pipe or fitting. The backnut is also equipped with a rubber washer that provides a tight seal between the backnut and the pipe or fitting, preventing leaks. The McAlpine BN3 White Plastic Backnut with Rubber Washer is commonly used in plumbing installations where a secure and leak-free connection is required, such as in bathrooms, kitchens, and other areas where water is used. The backnut is easy to install and requires no special tools or expertise, making it a popular choice among both professional plumbers and DIY enthusiasts. Overall, the McAlpine BN3 White Plastic Backnut with Rubber Washer is a reliable and cost-effective plumbing accessory that can help ensure a safe and leak-free plumbing installation. Size: 1.75" BSP   Available in 1.25” BSP, 1.5" BSP, 1.75" BSP and 2" BSP  Available in 4 flange sizes  White Plastic

It is designed and manufactured by McAlpine, a UK-based company that specializes in plumbing products.

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