Tank (reservoir) 80 liter

Your two descriptions, 21-gallon (80-liter): The TP-16P was manufactured using FDA-approved materials and tested for quality assurance. NSF certified according to Standard 58, and CE approved under PED (Pressure Equipment Directive). The water storage chamber consists of 100% lining of pure polypropylene material. TankPAC pressure tanks use butyl membrane and polypropylene lining to separate water from air. These materials limit microbial growth and prevent impurities inside the tank. The tank is made of durable stainless steel material. Designed to store reverse osmosis water. The copper lid equipped with an internal O-shaped ring ensures no air loss from the vents. An internal smooth vent cap prevents diaphragm damage.