Features: – Stainless Steel Two Walls Maintains Beverages Warm or Cold for a Longer Time – Keeps Beer Fresh and Carbonated for Days or Weeks – 64 oz. Double-wall mini keg growler – Homebrew CO2 System Keeps Carbonated Beverages Fresh All Day – Adjustable Pressure Regulator 0-30PSI. – Solid Stainless Steel Material 8/18 – Short Cap Design More Easily Fits into Home Refrigerator – Hexagonal Screw Cap Makes Easy to Grip – Easy to Assemble – Easy to Fill – Easy to Clean What’s in the Box: – Stainless Steel Double Wall Keg – Cap Spear – Brass Tap – CO2 Aluminum Regulator with 0-30PSI – Food Grade Silicone O-Ring Kit – 47.24’’ Silicone Beer Tubing, 0.2’’ Inner Diameter & 0.4’’ Outside Diameter Construction Material: – Food Grade 304 Stainless Steel: (Kegs and Cap Spears) – Aluminum: (Regulator), Brass Tap (Tap) Technical Specs: – Keg Liquid Volume Capacity: 64 oz. – Good insulation can keep beverage cold for 8 hours. – CO2 System: 30 PSI, Safety Pressure Regulated – Standard Threaded CO2 Cartridge Compatibility (Not included) – CO2 Regulator and Cartridge Threaded Size: 3/8-24UNF – Total Assembled Dimensions (L x W x H): 8.7’’ x 14’’ x 5.3’’ -inches – Total Dimensions Without Tap Hardware (L x H): 5.3’’ x 11.6’’ -inches