General description The White Primer Bulb Pump set includes 12 pieces, featuring 6 large (22 mm) and 6 small (19 mm) carburetor oil cups. This repair kit is designed to quickly replace old or damaged carburetor bubbles, ensuring optimal performance for various gas engines. Technical specifications Large size: 22 mm Small size: 19 mm Material: Transparent plastic Quantity: 12 pieces (6 large, 6 small) Usage The primer bulb is a crucial gasoline accessory that is easy to assemble and is commonly used in chainsaws, blowers, pressure washers, weed eaters, brush cutters, and many other gas engines. Other information