Waste Pipe 50 mm Cap/Stop End - Push-Fit/Compression - Grey

I got this as a plug for my 2 inch telescope to plug the hole after removing the eyepiece keeping the internet lense clean.

This is 49mm not 50mm so is useless.

Does the job. Sadly this one was the only choice on Amazon. Had to pay too much for such a basic thing

Very good quality and perfect size. Just what I needed.

Sturdy construction but ridiculous price. Worse, the description makes it sound like it fits pipe with an OUTER diameter of 50mm ("diameter: 50mm" and the obvious flange on the end), but it's designed for a pipe with an INNER diameter of (slightly over) 50mm - if you have a pipe with an outer diameter of 50mm then the end-cap will not fit it. As the description did such a terrible job, here are the precise dimensions to within half a millimetre or so: Cap end diameter: 55.5mm Pipe opening outer diameter: ~50.5mm Pipe opening inner diameter: ~46mm