- Designed for pressure testing hoses, pipework, radiators & boilers etc. - Can use either water or oil for testing. - Comes with a gauge to monitor the pressure in the line. - Fills the line you are testing with fluid from the reservoir. - Working pressure: 290psi (20 bar). - The pump is brass with anodised aluminium piston. - Housed on a 5 litre capacity steel tank reservoir.