Caleffi 502115A MINICAL™ Automatic Air Vent with Check Valve, 1/8" MNPT FS1500L Open-weave outer shell for comfort

Open-weave outer shell for comfort

Air Flow: HI: 4

Perma-SHIELD non-stick aluminum coating protects the blade against heat

Superior clearing power

and Shield

Caleffi 502115A MINICAL™ Automatic Air Vent with Check Valve, 1/8" MNPT FS1500L Open-weave outer shell for comfortCaleffi 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