DXDIVER Bailout Pony Bottle Diving Kit with 6 cf Tank Gauge Regulator Spare Secondary Air Scuba Dive Egressor 6 cubic foot Catalina Pony Bottle - 2x the volume of similar setups Integrated 1st stage with 2 LP and 1 HP port with Button Pressure gauge Easy breathing due to conventional regulator design Fill adapter for easy filling on conventional tank. Fresh Hydro stamp and VIP Sticker