CRL Jackson Regular Duty Overhead Concealed Door Closer Body Only (Brown), 105 Degree No Hold-Open

No. The 20-101M-01 ships as a closer body only, with no mounting clips and no arm. If you are reusing an existing Jackson installation you can keep the clips already in the header; otherwise you have to order the clip package that matches your application, plus the arm or spindle assembly for your hanging method.

It fits standard 1-3/4 inch by 4 inch (45 x 102 mm) header extrusions or larger, and it retrofits existing Jackson body style closers. The body itself measures 11-5/8 inches long by 3-11/16 inches wide, so measure your header pocket before ordering if you are working with anything nonstandard.

Yes, the 20-101M-01 body is single or double acting, which covers center hung storefront and interior aluminum doors that swing in and out. Which way it works is determined by the spindle and clip package you pair with it, since the body ships less arm.

The 20-101M-01 body is single or double acting and mounts concealed in the frame, and Jackson publishes both center hung and offset installation instructions for its overhead concealed bodies, so offset applications are covered. If you would rather buy a closer built specifically for an offset pivot on an aluminum door, the Norton Rixson 0608 Series is a standard duty offset hung overhead concealed closer for aluminum doors up to 200 lbs. Check the leaf weight first - the 0608 tops out at 200 lbs where the Jackson body is rated to 250 lbs.

The Jackson 20-101M-01 is a commercial regular duty concealed in frame closer body. When the spec calls out Grade 1, the Dormakaba ITS9613 from the ITS96 Series is a Grade 1 concealed overhead door closer, and the Sargent 268 is a Grade 1 heavy duty overhead concealed closer with a cast iron body. Both are complete closers rather than a body only unit, so you are not sourcing an arm or a clip package separately as you would with the Jackson body.

The Jackson 20-101M-01 is a 105 degree non hold open body, so the degree of opening is fixed by the closer. If the opening has to swing wider, the Sargent 269 is a heavy duty Grade 1 overhead concealed door closer with 180 degree opening capability. That is the clearest swap when a wall pocket or a wide equipment path requires more than 105 degrees.

No - they are not interchangeable in the same header. The Jackson 20-101M-01 is a body only, less arm, unit measuring 11-5/8 inches long by 3-11/16 inches wide that fits standard 1-3/4 inch by 4 inch or larger header extrusions and retrofits existing Jackson body style closers. The Sargent 278 is a heavy duty Grade 1 overhead concealed closer with an exposed arm, which is a different arm configuration and a different frame prep. Swapping to the 278 means reworking the header, not just dropping a body into the existing pocket.

No. 105 degrees is the designed opening range of the closer, not a stop, and the non-hold-open function means the door always returns to closed on its own. If you need the door to stand open for loading or cleaning, you want a hold-open version instead.

For a center hung aluminum or hollow metal opening at a similar duty level, the Norton Rixson 608 Series is a standard duty center hung overhead concealed closer for 200 lb doors, and the Norton Rixson 700 Series is a standard duty center hung overhead concealed closer with 200 lbs capacity. The Dorma RTS01 from the RTS88 Series is a center hung side load closer, double or single acting, for aluminum door and frame and is non-handed. The Jackson 20-101M-01 differs in that it is sold as a body only with a fixed regular spring size and a 105 degree non hold open action.

Both cover the application from different angles. The Jackson 20-101M-01 is single or double acting and mounts concealed in the frame, but it ships as a body only without mounting clips, so you reuse the existing clips or buy the correct clip package. The Dorma RTS01 in the RTS88 Series is a center hung side load closer, double or single acting, for aluminum door and frame, and is non-handed. Choose the Jackson body when you are replacing an existing Jackson body style closer in a header already prepped for it, and the RTS01 when you are setting up a new center hung side load installation.

Dual valves, one for closing speed and one for latching speed. That is the full adjustment set, and it is done at the body once it is in the header, so leave yourself access before the stop or cover goes back on.

Commercial. It is a concealed in-frame mount closer for aluminum storefront and similar commercial entrances, mounted inside the header rather than surface applied to the door face. Residential wood doors with no header extrusion are not an application for it.

No. The brown body sits concealed inside the header extrusion, so the color is essentially an internal identifier rather than a visible finish. What shows on the opening is the header, the cover, and the exposed spindle or arm hardware, which are ordered separately.