- Portable D-cylinder US$ 49
(Complete ready to use) - Portable D-cylinder US$ 18
(Refill) - Portable E-cylinder US$ 49
(Complete ready to use) - Portable E-cylinder US$ 18
(Refill) - Portable M-60 cylinder US$ 78
(complete ready to use) - Portable M-60 cylinder US$ 38
(Each refill – usage approx 10hrs at 2 lpm) - Stationary LARGE cylinder US$ 126
(Each refill – usage approx 24hrs at 2 lpm)
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