Check the listing for details. REVERSE OSMOSIS RO HOME WATER STORAGE TANK PA-E RO-132. Color: WHITE, Condition: New. Listed at 60.00 USD. (White) NSF 4.4 Gallon Tank with 3.2 Capacity PAE Machinery Industrial CO., LTD is one of the largest pressure tank manufactures in the world today. To provide the high quality tanks and good service to satisfy our customers needs is always our goal. Good is not enough for s; we want to be the best in the industry. PAE pressure tanks use a butyl diaphragm and polypropylene liner to separate the water and air. These materials limit the growth of germs and prevent impurities inside the tank. Advantages of a metal diaphragm type expansion tank Metal shell has greater pressure resistance than plastic. Lower molecular porosity of metal eliminates air pressure loss. Diaphragm-type design assure stable water outflow. Features: Stainless steel connection built for Reverse Osmosis water storage tank; pump tank & thermal tank applications. Brass cap with internal O-ring guarantees no air loss from air-vent. Smooth internal air vent cap prevents diaphragm damaged. High-grade butyl diaphragm, post-cure procedure insures a tasteless and odorless water chamber NSF 61 and 58 listed. IAMPO approved. CE Mark approved Maximum Working Pressure: 100PSI All Tanks are Pre-charged at 7 PSI All tanks are NSF listed except SS-180(stainless steel tank) Connecter NPT 1/4" We Only Ship Lower 48 States P.Rico, Hawaii, Alaksa please ask before purchase