The Taco Hy-Vent® has become the industry standard for dependable long life service. Available in 1/8 in, 1/4 in and 1/2 in x 3/4 in threaded connections, the high capacity float style vents can be placed either on the boiler or at the high points throughout the system. Now with operating pressure ratings of up to 250 psi, the brass body, nickel plated vents meet the system requirements of even the largest installation. The vents are also easily serviceable if needed, by just unscrewing the vent cap.