John Guest PM051012E - 1/4" BSPP Male x 10mm O/D Stem Adaptor

The John Guest PM051012E is a plumbing fitting, specifically an adaptor designed to connect a male 1/4" BSPP (British Standard Pipe Parallel) thread to a 10mm outside diameter (O/D) stem. This adaptor is part of the John Guest push-fit fitting system, which is used in various plumbing and water filtration applications.

The male 1/4" BSPP thread is a common thread size used in the UK and Europe for connecting pipes and fittings. The 10mm O/D stem is a tube or pipe with a diameter of 10mm, typically made of plastic or metal, that can be inserted into the adaptor and secured in place with the John Guest push-fit system.

Overall, the John Guest PM051012E is a versatile plumbing fitting that allows for easy and secure connections between different types of pipes and fittings.