418-4 | 1/2" FNPT x 3/4" MNPT Hy-Vent | Taco Connection Type 2_Female Coupler Averaging Element

Averaging Element

20"/100 PSIG LS 5 BU RANGE 100/425 PSIG HS

Pneumatic 3-Way

PRIOR TO ASSEMBLY

HEATER/THERMOSTAT KIT

418-4 | 1/2" FNPT x 3/4" MNPT Hy-Vent | Taco Connection Type 2_Female Coupler Averaging Element1 2" FNPT x 3 4" MNPT Hy Vent Replaces 418 3 You already know Taco Hy Vents as the industry standard for dependable, long life service. The high capacity, float style vent can be placed either on the boiler or at the high points throughout the system. With threaded connections 1 8", 1 4", 1 2" and 3 4" and operating pressure ratings up to 150 psi, these brass body, nickel plated vents meet the system requirements of even your largest installations.