DirDirect :: REGULATORS | HOSES :: Suit Inflation Regulators

First stage dive regulators for suit inflation and over pressure relief valves whether you use argon or air to inflate your drysuit.

Suit Inflation Regulators


Apeks Over Pressure Relief Valve

Apeks Over Pressure Relief Valve for Drysuit Inflation Systems designed to be used on the first stage with a relief pressure of 12-17 bar, enhancing dive safety. The valve is a standard 3/8 UNF fitting for LP ports on contemporary first stages.


IST Over Pressure Relief Valve

Adjustable 1st stage over pressure valve. Pressure releases from 11.7 bar up.


Apeks DS4 First Stage Regulator

The Apeks DS4 First Stage is a work horse with years of tested and proven experience preferred by the most demanding technical divers. Ideal for twinset configuration.

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Apeks US4 First Stage Regulator

The Apeks US4 First Stage regulator is a compact unsealed first stage with four medium pressure ports and one high pressure port. Popularly used with air on optional suit inflation bottles as an alternative suit inflation method.


Halcyon H-50D First Stage Regulator

The Halcyon H-50D 1st Stage Regulator is a high performance diaphragm design that is fully sealed and purpose built for harsh conditions like ice or environmentally contaminated environments.


Scubapro MK11 First Stage Regulator

Scubapro MK11 First Stage Regulator is a perfect choice for a traveling diver who requires a light weight first stage. Machined marine grade chrome plated brass body. Four 3/8 UNF low pressure ports and two high pressure ports.

save 10%

Scubapro MK17 EVO First Stage Regulator

The Scubapro MK17 EVO regulator is Scubapro's premium high performance balanced diaphragm first stage. Engineered specifically for cold water and harsh environments, its internal components are completely sealed off from the elements so neither water nor pollution can get inside.


Scubapro MK2 EVO First Stage Regulator

The Scubapro MK2 EVO First Stage Regulator is a totally evolved classic downstream piston first stage. With increased breathing sensitivity and better airflow, freezing resistance is dramatically increased.


Suit Inflation 1st Stage Regulator (with OPV)

Compact suit inflation first stage with an over-pressure relief valve. Regulator has one LP port for inflator hose and is for suit inflation only.


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