Boneyarddiver
Registered
I use APEKS DS4 1st stages for all of my bailout regs with ATX50. My rEvo also came with DS4 O2 and DIL 1st stages. I tear them down annually for an ultrasonic cleaning in Global Scuba's Hydrosonic cleaner. Scubagaskets.com is a great source for 1st & 2nd stage rebuild kits as well as parts.