3/4" Inside Diameter (ID) Rubber Grommets

Every grommet on this page has a 3/4" inside diameter (ID), the clear opening left for whatever passes through it. A 3/4" opening fits a 1/2" OD tube, a thick extension cord, or a small group of low-voltage cables. The 13 styles here fit panel holes of 7/8", 1", 1-1/16", 1-1/8" or 1-1/4", with groove widths of 1/16", 1/8", 3/16", 1/4" and 3/8", so you can match both the hole you drilled and the thickness of the material.

How to size a 3/4" ID grommet. Start with the item going through: measure its outside diameter, or the widest point of any plug or fitting that has to pass, and make sure it clears 3/4". Next, measure the hole with calipers; the grommet should be listed as fitting that exact hole size, because the groove has to sit tight against the edge. Last, measure the panel thickness and choose a groove width equal to it or slightly wider. If the panel is thicker than the widest groove listed, drill to a larger hole size instead and step up in ID. Searching by hole size rather than opening? Use the "fits holes" link below.

Related sizes: 1/2" ID grommets · 1" ID grommets · Grommets that fit 3/4" holes · All rubber grommets