Wolseley Product Ref Description 492987 2 Cylinder Automatic Changeover Low Pressure 37mb Propane 5kg/h (70kW/h) CSR Consumer Safety Reset OPSO Single Box x 1 Outer Box x 6 Pallet Layer x 48 Purchase Quantities Wolseley Product Ref Description 492988 4 Cylinder Automatic Changeover Low Pressure 37mb Propane 5kg/h (70kW/h) CSR Consumer Safety Reset OPSO Single Box x 1 Outer Box x 4 Pallet Layer x 32 This kit contains 2 x 20” and 2 x 33” Hoses plus 2 x European Approved NRV Tee Pieces Purchase Quantities Wolseley Product Ref Description 484458 2 Cylinder Automatic Changeover Low Pressure 37mb Propane 5kg/h (70kW/h) Complete Installation Kit Single Box x 1 Outer Box x 4 Pallet Layer x 32 This kit contains 1.2mtr Hose c/w Integral Test point plus 1 x 15mm and 1 x 22mm Compression Fittings Purchase Quantities Wolseley Product Ref Description 488399 2-4 Cylinder Upgrade kit Single Box x 1 Outer Box x 8 Pallet Layer x 64 This kit contains 2 x 33” Hoses plus 2 x European Approved NRV Tee Pieces Purchase Quantities