Check the listing for details. Spare Air 3000 psi Tank. Condition: New. Listed at 299.99 USD. Spare Air 3000 psi Tank PRODUCT DESCRIPTION Spare Air Model 300 The preferred choice of Recreational Divers 3.0 cubic feet of air. Tank finish in durable Anodized Black. Easily refills from your own SCUBA tank with included refill adapter (patented). Easily attaches to your BC with included holster and safety leash. Small, hands-free, nearly neutrally buoyant. Breathe on demand regulator - No complicated instructions. Completely redundant back-up miniature SCUBA system. Faster than buddy breathing and easier than an octopus. Specifications Maximum Capacity: 3.0 cu ft / 85 liters Length:13.4" / 34 cm Diameter: 2.25" / 5.7 cm Maximum Pressure: 3000 psi / 207 bar Weight (full): 2.2 lb. / .98 kg Surface Breaths:* 57 Water Volume: 27 cu in / .44 liters *Based on 1.5 liters per breath We ship Monday-Friday 8:30AM - 5PM of EST While some orders would not be shipped out same or next day, they will be delivered by the eBay estimated delivery date. If you desire the item sooner, please, choose expedited shipping options. Please, contact us through eBay messaging if you need more information on the product