International Door Closers #231 Fixed Tension Medium Spring Overhead Concealed Closer Body Only. The Medium Spring is the most popular Fixed Tension Closer for use on exterior doors. This is the same quality International Door Closer that is included in our complete closer packages. Suitable for doors 30" to 42" wide and up to 96" tall. 105 Degree backstop with no hold open feature.
- Medium Spring Tension - The most popular fixed spring tension for exterior doors.
- Two Speed Control Valves: Closing and Latching speeds controlled by separate regulating valves, fully adjustable after installation.
- Stable hydraulic door check fluid for any climatic operation and constant lubrication.
- Positive centering for alignment and to hold door closed against any normal window draft.
- Cast iron body fits in an aluminum header or transom bar as small as 1-3/4" x 4".
- Double or single acting for center hung doors (Door stop applied to frame renders unit single acting).
- 105NHO - Allows door to open up to 105 Degrees with no hold open capability.