National Aluminum Hydraulic Screen Door Closer Conduit & Fittings high performance hole saws deliver

high performance hole saws deliver faster cutting performance & increased productivity

insert a 3/16' x 1-1/4' or 1/4' x 1-1/4' wood dowel

made from first quality

sub power port

National Aluminum Hydraulic Screen Door Closer Conduit & Fittings high performance hole saws deliverSturdy 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.