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110 Amtrol Fill-Trol Expansion Tank W/ Automatic Fill. Tank Volume: 4.4 Gallons Height: 17 3/8" Diameter: 11" System Connection NPTF: 1/2"
The Amtrol Fill-Trol system consists of a specially adapted Extrol pre-pressurized, diaphragm-type expansion tank, and the Fill-Trol, a specially designed, automatic, pressure-reducing fill valve.
• Provides accurate system make up • Eliminates need for a separate, automatic fill valve • Fully adjustable up to a maximum working pressure of 100 psig • Factory pre-charged to 12 psig; tank pressure controls system fill
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