The Mares XR Over Pressure Relief Valve fits into one of the low pressure ports of your first stage and acts as a fail safe against free flows caused by excessive intermediate pressure and intermediate pressure creep that can occur in a malfunctioning first stage or a first stage that requires a service.
Rather than the excess pressure being forced out of a second stage which could cause a free flow, the over pressure relief valve will be forced open at 13bar (+/- 0.5 bar).
30 DAY RETURNS
If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!
Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Too easy!
For step-by-step instructions click here