14
FIRST STAGES T3 T2x ST1 M1 B2 Z2 Z3
Compact size ✓ ✓ ✓ ✓ ✓ ✓ ✓
Balanced piston design ✓ ✓ ✓ ✓ ✓ ✓ ✓
First stage materials titanium/ titanium/ stainless/ brass/ brass/ brass/ brass/
monel monel stainless monel stainless stainless stainless
High pressure
✓ ✓ ✓ ✓ ✓ ✓ ✓
piston seal system
Optional freeze protection standard standard standard standard option option option
Nitrox (EAN) ready 40% 40% 40% 50/80% 40% 40% 40%
# HP ports 2 2 2 2 2 2 2
# LP ports 5 5 5 5 5 7 7
LP swivel ✓ ✓ ✓ ✓ ✓ – –
Intermediate pressure (all): 125-145 psi (8.6-10 bar)
Max pressure rating: 3500 psi (241 bar) with yoke connection / 4350 psi (300 bar) with DIN connection
Comparison Chart — Atomic Aquatics Regulator Systems