Caleffi 502115A MINICAL™ Automatic Air Vent with Check Valve, 1/8" MNPT mach-blue Filter screens are important for

Filter screens are important for protecting the pump from debris

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Filter Type: HEPA

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VS820H1117

Caleffi 502115A MINICAL™ Automatic Air Vent with Check Valve, 1/8" MNPT mach-blue Filter screens are important forCaleffi 502115A MINICAL Automatic Air Vent with Check Valve, 1 8" MNPT Automatic air vents are designed to remove trapped air that accumulates in heating and air conditioning systems automatically. Air removal enhances performance and life of a system by reducing the affects of: corrosion due to the oxygen pockets of air trapped in the heating emitters cavitation in the circulation pumps The check valve on the 5021 series allows for easy replacement