DiveRite replaces my Nitek Duo, life is good.

[divemichigan]

Ya, I sent at Dive Rite tank checker back this year because it was way off. If was a few years old. They exchanged it for half the cost of new.  I was happy...

But I've had pretty good luck with most dive manufactures O"Neil replace a dry suit I purchased as a "Blem" that was 4 years old with a brand new suit about 13 years ago. I never even spoke to anyone, just sent it in with a letter and two weeks later I had a new dry suit at my door. Underwater Kinetics has replaced stuff for me before too.