dsenloe
Contributor
Hello again, you'll have to excuse me if i'm doing this wrong but I'm new to scuba forum. Assembling some o-ring kits for dacor 900 950 960 regs. I have all the sizes but just want to get some other opinions as to material and hardness , was thinking of buna for material and 70-75 for hardness except on first stage hp pistons. any suggestions/comments would be greatly appreciated
