XS Scuba XTR Extra Air System is a completely redundant back-up air system for increased dive safety. A must for solo divers and others who must be self-reliant underwater.
The XTR System includes:
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Pony cylinder with 230 Bar combination DIN/Yoke valve
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Stainless steel pony mount bracket with cam buckle strap
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Anodized aluminum DIN inlet cap to seal out water & dirt
Nitrox ready with Viton o-rings. Available with 13cf or 19cf aluminum cylinder (3000 psi) or 27cf LP steel cylinder (2640 psi).