The worlds quietest and only titanium centrifugal pumps. They are made with noryl housings and impeller, titanium rotor and separating wall, ceramic bearing ball, carbon graphite bearing cap and EPDM o-ring. Designed for all saltwater applications. Backed with a 18 month no-fault warranty on manufacturer defects, the Velocity Series water pumps are highly energy efficient and ultra-quiet (less than 30 db). They are high performance and feature "Dry Run Cutout" with thermal switch for added safety. Velocity Water Pumps feature sealless/leakproof designs and are made with noryl housings and impeller, titanium rotor and separating wall, ceramic bearing ball, carbon graphite bearing cap and EPDM o-ring. They are rated for temperatures to 140 F and line pressures to 50 psi. All pumps come equipped with 3/4" male NPT threaded inlet and outlet, T4 comes with 1" hose barb, mounting bracket, and 18/3 SJTWA 6' power cord.