Hailea HX-8860 6500lph In/Out Pump M/Head 4.2m; these inside outside high Jet liquid pumps are fully submersible plus they can be used inline. They are supplied with clip on filter hoods. Features - ceramic shaft, double water-cooled structure, ABS plastic case, mounted on suction pumps. Applications include pumping, oxygen supplying, wave making/pulse NFT, filtration. Designed for continuous use these are very good quality pumps.