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

Great for your in home needs very well made

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

These are the cheapest way to add a sight glass to your bucket

I used this to sleeve my shift rail on my transfer case. It hold up well to the heat.

Well made and does the job on hydroponic Dutch buckets.

This was for someone else.

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

Received product promptly and as described.

Using the to create self watering planters out of 5 gallon containers. They do the trick.

Item was exactly what I wanted unfortunately I bought them too small. But the material is thick and sturdy. Will be buying bigger size with same manufacturer.