Buna-N O-Ring Kit, 70A Durometer, 382 Pieces, 30 Sizes (Color May Vary)

I liked the fact that it was a variety pack, and it had the size I needed, at a great price. I needed a couple of small O rings for the hose and wand on my pressure washer, and this product work great. The O rings appear to be not very firm but durable, they are a made of 70 durometer Butna rubber, and not as firm as the (90 durometer nitrile rubber). So far no leaks, and would recommend.

This kit has a great assortment of O-rings of different Dash. I need one for a leaking faucet in my kitchen, but soon found out the old o-ring I was replacing was thiner than the one I got out of this set. I know it's my fault for not measuring the old one's thickness, but I wish this kit would have more info about each piece's thickness. Anyway, I ended up using the o-ring anyway, because I didn't have the time to be looking for the right one anymore, the faucet head won't go in all the way into its base, but it's not leaking anymore . Point is, I will give you the thickness of each ring provided in this kit. I used a caliper and measured each by inch fractions, if you need me to do mm or whole inches, please let me know. I will list the Dash numbers and since most are the same thickness, I will simply place a - between size ranges. Between Dash number 325 - 327 the thickness is 13/64 of an inch. Between Dash number 210 - 222 the thickness is 9/64 of an inch Between Dash number 110 - 116 the thickness is 3/32 of an inch Between Dash number 006 - 012 the thickness is 1/16 of an inch.` Well, that's it for the thickness. As I said, the kit is great for an assortment of diameters, but it may not be that great for those looking for thinner o-rings. I hope this helps.

This kit seems to be a very nice quality and a few steps above the quality of o-rings of those cheap HF and imported kits. Quick shipping too

Good kit, lots of different sizes. I bought two different kits to cover the range of different thicknesses and diameters. I repaired a nail gun that required a $110 seal with a $0.10 o-ring of the exact size to fill the space. The $109.90 I saved paid for both kits and left me with about $50 in hand, plus of course over 700 o-rings!!

This assortment was on Gold Box for a good price, that said, it is a valuable assortment to have on hand. I thought it would sit on the shelf for a time until I actually used it. It was only 1 week until I was repairing a neighbors lawn mower and needed a gasket for the fuel bowl. Well, not having a gasket, I looked in the O ring box. TADA ! Just the right size. Saved the day and now I don't have to look at tall grass ! And, by the way, one of the o rings fits DELTA single handle faucets also. A nice selection of sizes and quantity. For under $10.00, well worth having sit on the garage shelf !

I have a fancy garden hose wand that I've had for a few years and it started leaking this spring inside the handle. The leak slowly got worse and I finally took it apart to find an O ring had started to split. Let me just say, it surprises me how many people will just throw something away when it stops working correctly. This hose wand is $30+, maybe more like $40+ with all the inflation in last 12-18 months. A lot of folks would just go buy a new one. Anyway, I had a couple spare O rings sitting around which I tried out but they were either too small or too big. So I bought this kit for $20. When I got it, I picked out the right size, replaced the old one, boom works like a charm! Kit just paid for itself and I've got 381 O rings left to save me some more money on the next thing that breaks.

Always handy to have o-rings around to save a trip to the hardware store. Most big box stores don’t even have an o-ring section anymore. The o-rings are great quality and come in a nice storage box. Well worth the money.

So far it seems like a very good kit. Wide selection of diameters will hopefully make it so you can find what you need. I found a very small size for a fuel pressure gauge I needed. I have not wanted for o-rings very often so this kit will probably last ages for a normal homeowner/DIY mechanic/etc. I doubt this is the solution you are looking for in an industrial setting but it seems excellent for others.