The lower OPV's easy to. Reach for venting gas while horizontal or heads down, and the inflation. Design is a K style with a rugged crushproof rubber hose for easy. Positioning and oral inflation should you need to. ST22 - 22lbs lift / 10 kg.
Welded flange and one piece retainer for servicing without the need for tools. HD Laminated 1680D Cordura outer shell. Elbow offset to avoid tank valve/regulator interference and streamlined hose routing. Lower left pull relief valve. Cam band slots & tank cradle built in.