White pressurized R.O. water storage tank Stainless steel connection point one inch female. Along with an adaptor and ball valve for 1/4 inch.
Tank weighs 36 lbs and is (16) inches in diameter and (32) inches tall. Rated for up to (100) psi.
Hydroneumatic, bladder, captive air, reverse osmosis storage & pressure tank are all common names for these tanks.
All of these tanks fill a food safe bladder with water and that bladder is surrounded by a coushion of air. Tanks rated for reverse osmosis water storage have stainless steel connection points vs. common steel which will corrode when exposed to pure water.