The Apeks US1 First Stage is a compact unsealed diaphragm first stage designed for use in warm water and is intended as the first stage for a redundant gas system that only requires a second stage and pressure gauge.
The US1 has just one low pressure port and one high pressure port which significantly reduces the size of the first stage.
- Unsealed system for warm water diving
- No turret
- One low pressure port 3/8" UNF
- One high pressure port 7/16" UNF
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