1.5 Litre Green (Argon) Cylinder		£45
Tick box to add  Cylinder valve		+ £14
Tick box to add 22 inch inflator hose		+ £14.99
Tick box to add Over Pressure Relief Valve		+ £9.99

Made of Aluminium by Luxfer,  diameter 111mm,  length 295mm 
weight 2.08Kg (empty),  buoyancy +0.31Kg (empty),  200 bar

As shown with label, no rubber boot and no valve £45
OR
with optional 25mm DIN Convertable. Valve  add £14

Optional add ons:
22 inch Inflator Hose   add £14.99
Over Pressure Relief Valve (fits on 1st Stage LP port)  add £9.99

If buying an argon cylinder you may also like to look at   Pony Clamps  
and Apeks First Stage Regs