This is the Miflex Xtreme Low Pressure(LP) BC/BCD/Dry Suit Inflator Hoses Different Lengths Available Features: Patent Pending Double Nylon Safety Braiding Designed Inner Liner Layer of Polyester and Polyurethane Compound Liner Designed to Outperform and Outlive Traditional Rubber Hoses Fitting & Sleeves: UNI 12164 CW 614N Chrome Plated Brass Hose Resistant to UV Rays Minimum Burst Pressure of 3600 psi (250 bar) 30 Performance and Safety Tests EN250 Certified 30% Lighter than Equivalent Length Rubber Hose Unmatched Flexibility Average Lifespan: 3 Times Longer than Rubber Hoses Oxygen Cleaned from the Factory Kink-Resistant Design: Tie in Knot, Air Flow Unobstructed External Diameter: 0.47 (12 mm) Internal Diameter: 0.26" (6.5 mm) 16 Lengths: 6" to 1,200" (15.2 to 3,048 cm) Premium Packaging Doubles as Water Resistant Document Wallet 2 Year Limited Warranty XTREME hoses feature an external nylon safety braiding designed to resist the snags and abrasions that divers can often encounter. The patent Pending XTREME double braiding also resists UV rays out of the water, thus extending the lifespan of the hose. Unlike traditional hoses, the XTREME nylon safety braiding is not simply pushed over the hose fittings. Instead the braiding is tightly bound and fixed to the hose core by stainless steel or brass sleeve