Boatsea 740pcs Rubber O Ring Assortment Kits 24 Sizes Sealing Gasket Washer Made of Nitrile Rubber for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections, Black

These O rings are fine for general use, for things like a leaky swivel in a hose reel (all of them I have taken apart seal with O rings). You get a good variety of sizes, and at a very attractive price. These are softer O rings for things like lower pressure hydraulics or water faucets, hose reel swivels, washing machine motor connections, even most pressure washers. True high pressure O rings are harder rubber (higher durometer rating). For everything else, they are fine (Oh, except for air conditioning fittings, those need the green ones)

This is a good set of O rings with a large assortment of sizes. However the sizes listed are of the outside diameter of the rings, not inside as claimed. For example the photo shows the smallest ring in the set (6x1.5mm) is clearly 6mm O.D. and 3mm I.D. The largest in the set, listed as 28x3.1mm, is actually about 22mm I.D.

Some of the o rings were mixed up, had to sort.

There are sooo many different sizes that you'd have to buy 3 kits (this size) to have the one you need when you need it. I may never need another from this kit again. But if I do, there it is.

I used this to get the correct size O ring for my wife’s 2013 Honda Pilot oil pressure sensor. The size on the lid wasn’t correct (13mm) but I found one that matched.