Comparison Chart
Atomic Aquatics Regulator Systems

FIRST STAGES		T2x	ST1	M1	B2	Z2	Z2x
	Compact size
	Balanced piston design
	First stage materials	titanium/monel	stainless/stainless	brass/monel	brass/stainless	brass/stainless	brass/stainless
	High pressure piston seal system
	Optional freeze protection	(standard)	standard	standard
	Nitrox (EAN) ready	40%	40%	50% 80% (dedicated)	40%	40%	40%
	# HP Ports	2	2	2	2	2	2
	# LP Ports	5	5	5	5	5/7	7
	LP swivel					option	option
SECOND STAGES		T2x	ST1	M1	B2	Z2	Z2x
	Pressure balanced second stage
	AFC automatic flow control
	Titanium seat saving orifice			stainless
	Rapid adjustment knob
	Comfort swivel hose
	Titanium lever and spring
	Valve body material	titanium	titanium	zirconium	titanium over brass	zirconium over brass	zirconium over brass
	Limited lifetime warranty
COMPLETE SYSTEMS		T2x	ST1	M1	B2	Z2	Z2x
	Weight (yoke)	.838 kg (1.8 lb)	1.059 kg (2.3 lb)	1.191 kg (2.6 lb)	1.143 kg (2.5 lb)	1.070 kg (2.30 lb)	1.070 kg (2.30 lb)
	Weight (DIN)	1.7 lb (754g)	2.1 lb (964g)	2.3 lb (1030g)	2.02 lb (996g)	1.94 lb (844g)	1.94 lb (844g)
	Service interval	2 years or 300 dives	2 years or 300 dives	2 years or 300 dives	2 years or 300 dives	2 years or 300 dives	2 years or 300 dives