Hydrofarm HGGR50 (25 Pack), 1/2 Rubber Grommet, Black

Holds seal perfectly.

Received product promptly and as described.

Inner diameter is 1/2. Previous reviewer got this wrong.

Exactly what I needed. Worked just as expected.

After using not so cheap Home Depot grommets that leaked after a month of use, I changed over to Hydrofarm Grommets, so far so good. No signs of dry root, and no leaks.

It was not what I thought it was ... and not able to use it.

Well made and does the job on hydroponic Dutch buckets.

Used these to construct drain line on a 3 gal RDWC bucket system. I was concerned at first that they might seep but there have been zero issues. Simple solution

I purchased Hydrofarm HGGR50 Rubber Grommet for use with ½ inch PVC pipe. One of the comments said it could be used with a ½ inch PVC and 13/16 hole saw. There is no way they could be used as claimed. It put me in a hell of a bind. I had to improvise by using ½ inch CPNC pipe and a 7/8-inch hole saw. You need to remove the comments stating that it will work with ½ inch PVC. My satisfaction server will reflect my outrage.

These guys work great with my bucket self watering system. They fit well with half inch tubing really snug fit without leaking,,perfect for my project.