RTS-88 – OVERHEAD CONCEALED Ideal for both interior and exterior applications. It handles center hung single or double acting doors, or independently hung single acting. Compact closer body is designed to fit into headers as small as 1.75 x 4 inches. Closer body is non handed. Accommodates a maximum door weight of 250lbs. A mechanical back check slows down the door prior to contact with the positive stop. The standard RTS 88 is furnished without hold open. Optional single point mechanical hold open is available at 90 or 105 degree. 8812 – OFFSET SLIDE ARM Offset slide arm and channel. Hung on offset pivots, 4 wide butt hinges or continuous gear hinges. 8831 – SIDE LOAD ARM Standard side load top arm. 8836 – END LOAD ARM End load top arm.