PLEASE NOTE:WE ORDER THESE ITEMS AS WE GO ALONG, SO WE NEED TO CHECK FIRST TO MAKE SURE THERE IS AVAILABILITY. PLEASE EMAIL US BEFORE YOU PLACE YOUR ORDER . MANY THANKS IN ADVANCE.WATERWORLD SPORTS Beaver seamless steel cylinder packages are manufactured to stringent standards set by the demanding European PED specification to ensure your CE marked cylinder is allowed for use throughout the European Community - unlike other inferior designs. The body, manufactured from precision grade Steel exceeding BS 708 A 37, provides a high tensile strength and an elastic modulus that is 3 times superior to Aluminium. The cylinder is precision coated by 40m Flame Spray Galvanising, an anti oxidising RAL 9010 precoat and a smooth, tough lacquer finish. Our cylinders are supplied O2 clean for mixed gas compatibility and ready for use with Nitrox or Trimix if assembled in an appropriate environment with O2 clean valves & equipment and include a M25 X 2 thread cylinder valve with EN-144-3 outlet which allows use with 300 Bar EN-144-3 compatible G 5/8 DIN attachments. Measures 100mm in diameter and 515mm in length, plus valve and weighs approximately 5.6 Kgs when empty inclusive. 3 Litre capacity with a Maximum Working Pressure of 300 Bar, providing 900 Litres of gas when fully charged. Approximate Buoyancy of 1.76 Kg when empty and 2.84 Kg filled to capacity including Valve. PLEASE NOTE WE DO NOT HAVE CYLINDER BOOTS FOR 3 LITRE CYLINDERS & THESE ARE NOT INCLUDED.