National Aluminum Hydraulic Screen Door Closer Gorilla Made from the finest extruded

Made from the finest extruded magnesium alloy

Tunnel belt loop for up to 2-3/4' belt

Brass construction provides strength and durability

Larger clutch plates allow for easier release and increased durability and dependability

great for engine starting

National Aluminum Hydraulic Screen Door Closer Gorilla Made from the finest extrudedSturdy built. Delivers smooth no bounce door closing action for wood or metal storm, jalousie or light interior door. Oil filled. Closer speed easily adjusted by rotating closer cylinder. Extreme temperature changes do not effect closer action. Polished aluminum tube, equipped with controlled power which allows selection of extra closing power at latching point.