1020 Pcs O Ring Kit 20 Size Nitrile Rubber O Ring Assortment Set for Car Auto Vehicle Repair Faucet Plumbing Air or Gas Sealing Connections Resist Oil and Heat

I rarely write product reviews—even though I buy a lot of items.I spent hours searching the internet and Amazon for a good HNBR o-ring set at a reasonable price. After returning one flimsy, disappointing set, I was frustrated and still couldn’t find what I needed.So I turned to AI for help—and it actually worked. It suggested a few options, and I chose this one. So far, it looks like the best match for my criteria: quality HNBR material, fair price, large quantity, both metric and standard sizes, and fast delivery.The packaging is sturdy, and the rings themselves are noticeably thicker and more durable than the set I returned. I’ll be using them in my Mercedes A/C system tomorrow. If they don’t hold up… you’ll definitely hear from me again.

3 pack was the best price, I love that it came with an application brush. Large tubes that will last years to come. I used it on my kitchen faucet for better lubrication so it’ll sound and turn nicely. It served its purpose.

Money is tight so I decided I could fix that dripping Kitchen sink. Turns out I can!I used this to make sure the rubber seals stayed nice and flexible. Apparently, if you don't your handle will fight turning. I must have done it right because my sink works better than before.It's supper easy, cheap, and you get a ton of it.

Nice selection. The smaller ones are thinner than the larger ones. It got shook up in shipping so they were all mixed up but they were all there.

Very good quality o-rings, has every single size you will ever need. Nicely organized and easy to find what you need. Great kit for the money, will definitely buy again when needed!

This is a great kit for misc repairs that come up and will save you its cost the first time you use it. Lost a couple o-rings during a fuel line repair and this saved the day!

A number of O-ring kits on hand . When you need a part you need a part. Great variety and size. Easy to used price right to always carry onboard. Thanks

After doing zero research, I purchased this set of o-rings in the hopes it would have the size I needed, and sure enough it did! Used the 4.5x1 on the barrel of my BENU Euphoria fountain pen to facilitate eye dropper filling. After applying a small amount of silicone grease the ring works beautifully and just disappears as the section is screwed on and provides the required seal.