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First Stages - T3, T2x, ST1, M1, B2, Z2/Z3
Compact Size: Small size, high performance, high flow first stage.
Balanced, flow-through piston design: Large piston for high air flow and
stable intermediate pressures.
Optional freeze protection kit (Standard on T3, T2x, ST1 & M1):
Ambient chamber seal kit reduces the possibility of freezing at low temperatures and
seals water and contaminants out of the first stage.
Enriched air compatible: The T3, T2x, ST1, B2 and Z2/Z3 are nitrox ready
from the factory to 40% maximum oxygen concentration at 3500 psi maximum pres-
sure. The M1 may be used to oxygen concentrations up to 80% at 3000 psi maximum
when special oxygen handling guidelines are practiced (see page 10).
2 year or 300 dive service interval*: Unique self-lubricating piston seal
system for low maintenance and corrosion resistant materials throughout.
Innovative Product Features
*T3: 3 year or 300 dive service interval.