Delivers smooth steady water flow without the need for an accumulator tank. Pumps over 3.3 GPM. Special internal bypass feature eliminates pulsating water and pressure switch chatter. Designed for up to 5 fixtures. Runs dry without harm to the pump. Includes plug-in ports for easy installation: Two 1/2" Qest ports, two 1/2" hose barb ports. Strainer not included.3 3/4'' x 6''.