KC57US - Gate & Screen Door Closer, 4-3/4" Arm, Diecast Housing Surface mounted closer is fully rust and weather resistant making it suitable for exterior use. Single torsion spring is ideal for swinging screen doors and pool gates up to 57 lbs. (26kg) with an adjustable closing speed. Neat, compact, and durable brown-painted housing is made of diecast zinc. Reversible handing.