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 control for standard air-over-qater tanks. Use with submersible pump.
Includes: 1/4" compression fitting for plastic tube, nipple, air volume control and instruction sheet.