FRANKLIN 40 GALLON VERTICAL DIAPHRAGM TANK
40 Gal. Vertical Diaphragm Tank_x000D_ ANSI/NSF Standard 61 approved - assures safe, clean drinking water_x000D_ Blended butyl rubber diaphragm system - isolates the air charge from the water chamber and provides long tank life_x000D_ Heavy-duty steel construction - 16 gauge cold rolled steel with appliance-quality paint_x000D_ Steel clench ring protects diaphragm from rubbing against tank wall - eliminates abrasion and reduces condensation_x000D_ Brass air valve with O-ring seal - allows adjustment of air pre-charge