  
Brady automatic air volume control maintains the correct volume of air in a atmospheric pressure tank up to 220 Gallon capacity and is essential to successful water system operation.
Specifications :
- For tank size: up to 220 gallons.
- Body: Zinc die cast
- Diaphragm and seal cap: Buna N elastomers
- Spring and orifice: Brass
- Maximum Temperature: 140 degrees Fahrenheit
- Maximum pressure: 100 PSI
- Tank connection: 1/4" FNPT (Female pipe thread)
- Suction connection: 1/4 FNPT (Female pipe thread)
- Gauge port: 1/4 FNPT (Female pipe thread)
- Weight: 2.2 lbs.
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