3901081P is a Thermax heavy duty machine coolant pump. It is designed for efficient and reliable operation in interior machines and can handle most types of coolants including mineral, synthetic and water glycol. The pump's robust construction is made of cast iron and it has a 1/2 inch NPT female connection. The pump has a maximum flow rate of up to 15gpm and a maximum pressure of up to 258 psi. Its total head is 18.1 ft., with an suction lift of 5 ft. This pump also has an integral check valve and comes with a 3-foot power cord included.