【Product material】: Using high-quality alloy materials, more sturdy and durable. 【Applicable models】: Suitable for 52cc 49cc 43cc lawn mower carburetor, chainsaw carburetor, irrigation machine carburetor and other equipment with a fixed hole pitch of 31mm. 【Package includes】: 1x carburetor + 1x gasket + 2x starting pump + 1x fuel filter pipe + 2 valves + 1 spark plug + 1 additional fuel filter. 【Product features】: The lawn mower carburetor is developed and improved by E-RFSEY, which is more fuel-efficient, environmentally friendly and easier to start than other products.