The McAlpine Z21A 2" Multifit Caulking Ferrule is a plumbing fitting designed to provide a secure and watertight seal around a 2" pipe. It is a multifit fitting, meaning it can be used with a range of different pipe materials, including plastic, copper, and iron. The caulking ferrule is made from high-quality materials that are resistant to corrosion and damage from chemicals commonly found in plumbing systems. It features a rubber gasket that provides a secure and watertight seal, and can be easily installed using a caulking gun or similar tool. The Z21A multifit caulking ferrule is suitable for use in a range of plumbing systems, including domestic and commercial installations. It is capable of handling the demands of high-flow water systems, and its simple design makes it easy to clean and maintain. Overall, the McAlpine Z21A 2" Multifit Caulking Ferrule is a high-quality, reliable and durable plumbing fitting that provides a secure and watertight seal around a 2" pipe. It is easy to install, compatible with a range of different pipe materials, and is a popular choice for both professional and DIY plumbers. Available in 1.25", 1.5", and 2" sizes Multifit Fittings suit all plastic waste pipes to BS EN 1451-1:2017 and BS EN 1329-1:2020 and copper pipe and lead pipe

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

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