The McAlpine T13-Iso is a compression ring that is designed for use with 1 1/2-inch pipes in a plumbing system. This compression ring is made of brass and is used to create a watertight seal between the pipe and a compression fitting. The T13-Iso compression ring features an isolating sleeve, which helps to prevent electrolytic corrosion between dissimilar metals. Electrolytic corrosion can occur when two different metals are in contact with each other and are exposed to water or other fluids, which can cause the metals to corrode over time. To use the T13-Iso compression ring, the ring is placed over the end of the pipe, and a compression fitting is then inserted onto the pipe. The compression fitting typically includes a nut and a ferrule, which are tightened down onto the compression ring to create a tight seal. It's important to note that the T13-Iso compression ring is designed specifically for use with 1 1/2-inch pipes and may not be compatible with pipes of different sizes. Therefore, it's important to ensure that you are using the correct size and type of compression ring for your specific plumbing application.

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

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