Two Hour Water Timer for pump MDP250 * Set watering times from 15 minutes to two hours, in 15 minute increments * Easy manual override * Ergonomic grip lets you turn knob while wearing gloves * Up to 175 gallons per hour 40-60 PSI working pressure; Inlet thread: 3/4" standard female; Outlet thread: 3/4" standard male; Overall dimensions: 3-1/4" L x 2-1/2" outer diameter x 4-1/4" H