Used in jet pump water systems. Maintains proper charge in conventional tanks. Prolongs pump life by reducing frequency of cycling. No. AV-45: 80 Maximum Tank Gallons, 1/4'' FIP. No. AV-100: 100 Maximum Tank Gallons, 3/8'' FIP. 42 Maximum Tank Gallons, 1/4'' FIP.

• AIR VOLUME CONTROLS
• DIAPHRAGM - TYPE