National Hardware® N185-199 Spring Hinge, 3-1/2", Brass SummerFun This float opens the main

This float opens the main valve of the control in your system to allow access to air out into the atmosphere

Combats rust and corrosion

Now Supports 60 Vertical Feet at 2" from Wall

Durable powder coat & nickel plated finish

Sets in 15 Minutes

National Hardware® N185-199 Spring Hinge, 3-1/2", Brass SummerFun This float opens the main"NATIONAL" BRASS SPRING HINGE 3 1 2" Brass Adjustable Spring Hinge 1 4" Round Corner Designed For Hanging Self Closing Doors In Basements Stairways Garages & Entrances Can Be Used In Residential Commercial & Apartment Buildings Closing Speed Is Adjustable Fits Standard Hinge Cutout 1 Per Pack Carded.