Circulation pump is non-self priming pump. Max flow rate 2.1 GPM Max discharge head 9.8 ft

1/2-in male thread on pump. The OD of the brass coupler is 10 mm. Plug type 2.1 mm x 5.5 mm female. No power adapter included

Power source DC 12 volt not included rated current 0.7 a brushless motor low noise 30 DB at 1 m service life 30,000 hours

Max circulating water temperature 55°c / 131° f it's submersible but can't be immersed in hot water exceeding 50° c / 122° f