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

A-OK

They work great for sealing houses in buckets for hydroponics.

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.

Exactly what I needed. Worked just as expected.

Well made and does the job on hydroponic Dutch buckets.

These arrived on the estimated timr but ensure to take note of the sizing as this definity does not fit half (1/2) inch pipe as half inch pvc is the diameter of the whole grommet i would give it a 2.5 stars but it doesnt allow so 3 is fine as i misunderstood rather than false advertisement.

Great for your in home needs very well made

Perfect for DIY hydroponic! Very similar to the ones used in General Hydroponic water farm!

So just to clarify the 1/2 is outside diameter so I think that makes the inside diameter 3/8. I will still put them to use just frustrating when I needed inside diameter to be 1/2

Great product and seller!