Wookie
Proud to be a Chaos Muppet
Staff member
ScubaBoard Business Sponsor
ScubaBoard Supporter
Scuba Instructor
Not so much crappy quality, but folks ordering the wrong thing. The first time I ordered Urethane o-rings, the counter person said "Polyurethane?" to which I said yes. Polyurethane o-rings are not urethane, and don't have near the durometer rating (50 vs 110). The polyurethane o-rings shredded the first time I used one. O-rings must be ordered in the correct material, size, and durometer to be effective.