Pentax Ultra 5S WRAS Approved Surface Mounted Multistage Pumps 110v, 230v and 400v. Stainless steel multistage pumps for the pumping of clean water WRAS approved. Used for boosting water, boosting sets, irrigation, water treatment, heating and air conditioning. Non self priming. Inlet 1". Outlet 1". 140 Lpm. 22 to 81 Hm.