Lots of water flow despite low revs with this 5 chamber pump. Extremely quiet thanks to screwless installation (also making for a longer life) and simply fixed in any position with the supplied rubber bracket. Capacity: 9 litres per min at 2.8 bar, self priming from up to 2m. Connections: 13mm and 9.3mm o/d thread. Size: 200 x 197 x 114mm. 1.6kg.