Humiditreat Scale Reducing Inline Filter for Whole House Humidifiers. Description:Humidi-Treat is designed for humidifiers using up to 25 gallons per day, and will inhibit scale for one season. Install Humidi-Treat on the water line that supplies water directly to the humidifier.Application:Clean pad or install new pad before installing Humidi-Treat.For best results humidifier should have a daily dump of water from the sump to diminish • scale forming minerals.Install a new Humidi-Treat before each heating season.Humidi-Treat works best when installed on a cold water line.Humidi-Treat has internal 1/4" push-on fittings Installation Steps:* Shut off water.* Disconnect existing filter or cut water line where filter is to be installed* "Quick Connect" fittings * Insure proper direction of water flow and connect inlet and outlet.* Carefully turn on the water and check for leaks* Check the filter after approximately 8 hours for slight leaks not visible during initial installationFilter Length - 5-1/4"