The Hozelock Replacement Pressure Sprayer Seal Washers Service Kit For 12 and 16 Litre Knapsacks is the highest quality replacement Parts from Hozelock that is suitable for a large range of Hozelock Pressure Sprayers 12 and 16 Litre Knapsacks, (See Compatibility List Below) Replacement Pressure Sprayer Seal Washers Service Kit Suitable for a large range of Hozelock Pressure Sprayers Made from highest quality materials Colour Black Item Package Quantity includes x2 large O rings 1x medium O ring 1x small O ring 1x Pump handle part Hozelock Pressure Sprayers Compatibility List Hozelock 12 and 16 Litre Knapsacks including the below KillaSpray 12 - 4612 / 4522 / 4812 KillaSpray 16 - 4616 / 4526 KillaSpray Plus 12 - 4912 KillaSpray Plus 16 - 4916 Professional 16L - 4816