Ml60h horizontal captive air pressure tank with, Replaceable e, p, d, m, diaphragm and 100 psi maximum working, Pressure (tested to 150 psi), no water/air contact, rust, Free operation, No air volume control needed and no, Waterlogging, 60 l (15 gal) capacity with 5 gal, Of draw-down performance who equals to an equivalent, 30 Gal galvanized tank, 1"" npt connection, SKU: CAMP134