Review on 🔧 225PCS NBR Rubber O Ring Assortment Kits - 18 Sizes Sealing Gasket Washers for Professional Plumbing, Automotive Repair, Air or Gas Connections by Pete Norris

The photos in the listing show you will get good enough. This is a great pick with quite a few o-rings for less than $8. I was trying to upgrade a brass Dramm hose nozzle that had gotten to the point where it wouldn't turn off completely. There are two rubber O-rings in the nozzle. I couldn't find the right size in the set for the larger of the two. This shows that despite having 18 sizes, you may need a few more to cover the variety you need in the long run. For a smaller o-ring in the nozzle that was clearly worn out, I found one in the kit. This turned out to be a very close match. I stuck it in the nozzle and it worked for a while, and then after about a dozen opens and closes it came out at the end of the nozzle. I don't know if the thickness was slightly greater, but the diameter was close enough that you couldn't tell the difference by eye. I also haven't tried using silicone grease on the o-ring, which might help, at least for a while. Due to the low price I'm giving 4 stars but note that in many cases resizing may be necessary. very accurate.