Jackson 20104M20 Adjustable Spring Power Multi-Size 90 Hold Open Extended Spindle Overhead Concealed Closer

This CRL Jackson® Adjustable Spring Power Overhead Concealed Closer Body is designed for A.D.A. barrier-free applications and features a 7/8" extended spindle, the preferred length when used in conjunction with Patch Fittings or Rail Hardware on all glass doors. Its spring power is adjustable from a size 2 through 4 using Patented Dual Compression Technology providing finer spring tension adjustment and greater spring efficiency. With fully independent valves, this closer affords maximum adjustability when trying to balance building codes, stack pressure and keeping the door closed. It will easily retrofit most all fixed spring size Overhead Concealed Closers and is the choice of professionals the world over.
A.D.A. NOTE: Although the Adjustable Spring Power Door Closer can be adjusted to compensate for site conditions, adequate closing force might not be obtained while complying with A.D.A. opening force requirements.
Product Warning:
Closers set to comply with A.D.A. specified opening forces might not provide adequate spring power to control and close the door due to varying site conditions and door size. Mounting clips are not included with this closer body. Unless the existing mounting clips are used, you will need to purchase the appropriate clip package for your application. Contact Jackson® Technical Sales Department for assistance in selecting the correct Mounting Clip Package.

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