DXDIVER Bailout Pony Bottle Kit with Tank Strap Attachment 13 cf Tank Gauge Regulator Spare Backup Air Scuba Dive Egressor 13 cubic foot at 3000 psi 1.9 Liter / 207 Bar Pony Bottle - 2x the volume of similar setups Integrated 1st stage with 2 LP and 1 HP port with button-style pressure gauge Easy breathing due to conventional regulator design Fill adapter for easy filling on standard tank Comes with current Hydro stamp and Fresh VIP Sticker