LiquiDynamics DEF Gravity Drain Kit - With 25ft. Hose Gravity-activated kit - no pumps, electricity or air supply is necessary Includes a 3/4in.dia. x 25ft.L DEF hose fitted with a 2in. NPTF fitting at one end that connects to the bottom of most DEF IBC totes Bottom end of the hose features a 3/4in. polypropylene manual nozzle with trigger lock Durable EPDM hose construction