CherneOatey Oatey 270024 Test-Ball 2-inch Plug, Black

Excellent product. Definitely recommend.

Works as it should, and about half as much as it would have been at a local plumbing store.

So listen, here’s the deal how much excitement does a rubber test plug actually have? I mean what could a person actually leave for review for this product here’s what I can say. It worked very well and I did the job that I needed to do. There was also a fun element to it and let me tell you why. If you inflate this thing too much too quickly, it looks like a puffer fish under the ocean so take it easy. That’s what I learned. Take it easy and slated to the right size and it’ll work great.

I use this for every shower inspection i have with the city and zero issues. Left one for over a week and the water level never moved. Perfect!

worked good

Plumber told me my drain pan in shower might be leaking and said he'd have to do a test and it would cost me a couple of hundred. He explained how to do it...so I bought this and was able to do it myself (failed the test). This cost more than one of the red plugs, but the plug wouldn't quite fit in my drain. This did fit, though you do need to have an air pump to use it.

I tried using a balloon to do a water test on a shower pan liner that I've seen on a video. the balloon popped after a few minutes. the ball is expensive but worth it.very easy to use. just set the ball in the drain. pump it up using a bike tire air pump. i believe i set it to 30psi. remove the bike pump and fill the shower pan with water. Mark the water level on a plastic cup filled with gravel and let it sit overnight. lucky for me there were no leaks.

Does not plug evenly, poor quality