Product Description
This is the Luxfer Aluminum 19 CF Scuba Tank Cylinder Back-up Features: 19.0 cu ft / 2.9 liters Pressure: 3000 psi / 207 bar True capacity: 19.9 cu ft Diameter: 4.4 in / 112 mm Empty weight no valve: 8.0 lbs / 3.6 kg Buoyancy full: -1.3 lbs / -0.60 kg (in sea water with valve)