2-3/16 in. x 1-15/16 in. Black Rubber Stopper

I had to return the stopper because the fine print, Not easily read in the store, said the stopper contained lead. The stopper was for a potable water project.

Used this to bleed air out of my power steering system. Worked as intended until I cycled the power steering from stop to stop and the plug got sucked into the reservoir! Fortunately I was able to retrieve without damaging!

Rating provided by a verified purchaser

Worked great for the automotive I purchased it for (power steering pump air purging).

I installed a new water heater, where the floor drain for the pressure relief was cut at floor level. It drains from the garage closet to the house piping and over flows when the downstream piping is plugged. I used a hole saw to cut a hole to pass the relief pipe through it, put in a tee at the relief pipe elbow and a venting 2' standpipe above it. I put the plug in the floor drain, sealing with gasket sealant. A testing of the relief valve showed no leakage at the floor, or over flow of the standpipe.

Rating provided by a verified purchaser

Very helpful. Worked great for my project.

Good product.