NSF certified for safe drinking water with replaceable bladder Max working temperature 210°F and Max working pressure 145 psi Pressure tank for portabale water and pump system The 5.3 Gal. , 30 psi Precharge Horizontal Pressure Tank best to save energy. Max working temperature 210°F and Max working pressure 145 psi. The Replaceable Bladder. The pressure tanks of Varem line are a basic element of a potable water distribution system. The pressure tank stores the pressurized water of the booster systems working as hydrodynamic flywheel during drawing. This application reduces the frequency of switching on of the booster system. A pressure switch adjust the internal pressure and activates the pump only if the water pressure in the tank is lower than minimum required. Switching on, the pump loads the storage tank again. Std. certified 100% made in Italy Stainless steel Flange Best quality Strong Blue color tank Good for all type of weather Saves energy NPT connection Butyl rubber Estimated Delivery Time: 3 – 5 Business days