I don't know how much to write about the o-rings but I will say they appear to be of good quality. I replaced a few o-rings on hot water valves that were worn out. So far (about a month later) it's holding up well and no longer flows. I also like the choice of sizes. I would definitely recommend them to other people.
Car seat group 1/2 (9-25 kg) Britax Roemer Trifix2 i-Size, gray marble
20 Review
Poly Strapping Tensioner &Amp
3 Review
Enhance Efficiency with Sealer Replacement Element for Impulse Sealers in Hydraulics, Pneumatics & Plumbing - Seals & O-Rings
9 Review
Samsung DC64 00802A Diaphragm: Durable and Efficient Replacement Component
4 Review
1 Inch Beduan Brass Electric Solenoid Valve, 12V Normally Closed Air Valve For Water, Gas, Fuel, And Oil
10 Review
12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review
High-Quality QiiMii Stainless Steel Sanitary Clamp With Silicone Gasket - 2 Inch, Single Pin Tri Clover Design
16 Review
Upgrade Your Draft Beer Kegerator With The TerraBloom CO2 Keg Pressure Regulator - Dual Gauge Heavy Duty Unit With Safety Features
16 Review