“I don't know how Aquanauts do it but its a top quality cylinder at a very good price. I went for the DIR Zone mono valve where the DIN fitting is centred, in line with the cylinder like a modular / handed valve sits (unlike the Apeks and MDE options which are offset to the side). I find the centred shape works better for me when using as a stage. Its marginal, but if you are trying to make a decision on which valve to buy when there is little to choose between them then this can actually make a small difference.”
