National Hardware N350-850 Adjustable Spring Hinge, Cold Rolled Steel, 4" Passage 5 lb design fits into

5 lb design fits into tight areas

Self-storing poly case with easy wind-up

Provides the support package and termination parts for a chimney that is supported by a flat ceiling and that passes through an attic area and penetrates the roof

Do not use petroleum based products or paint on flashing collar

For residential and commercial pools using sand filters

National Hardware N350-850 Adjustable Spring Hinge, Cold Rolled Steel, 4" Passage 5 lb design fits intoHighlights: Series: V521 Adjustable Suitable for use with standard hinge cutout and fire doors 37 lb load capacity 4" overall length Material: Cold Rolled Steel Finish: Oil Rubbed Bronze Standards: UL Listed 1 4" radius round corner