Sealey oil dispensing system air operated sealey ak4561d mobile oil dispensing unit with air operated 3 1 double acting pump for barrel or tanks with 2in bsp fittings pump is supplied with air management system and connected to a 940mm rigid suction probe with non return valve features trolley 4mtr hose and digital oil meter model no ak4565d supplied suitable for use with engine hydraulic synthetic gear and transmission oils up to sae150 sealey ak4561d oil dispensing system air ope