The Acid Neutralizing Filter System utilizes the Clack 1191 In/Out Valve for superior Upflow pH neutralization. The 1191 valve is molded out a rugged thermoplastic resin that features a 1/4" FPT air vent port which can be drilled out to accept an air relief valve. Features:
Calcite media helps neutralize acidic water (pH levels below
4.8
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Haven't installed yet
I think I am going to like it but I'm still waiting for a spin down filter from you, the final re-devolping of my well and the professional that will un-install the wrong tank and install these two new filters. The technical support has been wonderful!
S
Susan · September 14, 2026
Ph neutralizer filter
Excellent product and customer service. Would buy again
T
Thomas · February 18, 2026
Works great
Install was straight forward my Easter is balanced!!