Green Product Guarantee/Warranty International Approvals Military Specifications Product Performanc Tube size: 58 x 1,800, 15, 18, 21 and 24mm Heater: 1.856, 2.233, 2.605 and 2.987mm Area: 45mm Thickness of insulating layer: 75mm Hole distance: 129, 154, 179 and 202mm Total water capacity: 169L Barrel diameter: Inside: 370mm Outside: 460mmStandard: 1,600 x 1,305 x 1,820mm