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Your cart is empty.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, 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
Domenico Giordano
Reviewed in the United States on February 6, 2025
Tank doesn’t come with troll valve misleading description of information
Tom M.
Reviewed in the United States on February 24, 2025
This unit works extremely well on my hot water heating system.
Customer
Reviewed in the United States on March 20, 2023
Super easy install and eliminates banging. Working great.
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