Ondemand Pump 24v 4lpm 70 PSI 3/8" Hose - DP24.4 Suitable for use with water based agricultural chemicals or water. For spraying & transferring liquids. Can be run dry. Unit comes complete with pressure switch fittings. Polyproylene pump head. EPDM diaphragm. Max. run time 30 mins. 1/2" & 3/4" hose tails plug in ports. Voltage Options: 12V, 24V, 110V, or 230V.