The D1200 Overhead Door Closer from Ryobi has an adjustable strength size from 2 - 4 depending on how it is mounted. With fully adjustable closing, latching speed and backcheck, the D1200 is a versatile choice of overhead door closer. It has been performance tested to 500,000 cycles for reliability and it is easy to install. The D1200 is suitable for both commercial and domestic applications as well as for closing insulated fire doors
The Powerglide 1553 Door Closer from Ryobi has a fixed strength size of 3 and it is suitable for both timber and UPVC doors as well as insulated fire doors. It is designed for use in areas not subjected to changes in air pressure with doors up to 900mm in width and 65Kg weight. With adjustable closing speed and latching action, the Powerglide 1553 is suitable for standard, parallel arm and over door installation.