Easy to install, this kit allows you to replace a faulty or failing roller shutter motor while retaining the rest of the roller shutter. It adapts to carpeted shutters, tunnel and renovation. Easy to install: all necessary accessories are provided for quick and easy installation. Fits either carpeted shutters, tunnels or renovations and can replace most engines on the market. Serenity: a kit ready to install to quickly replace your defective engine. The video and instructions accompany you step by step for stress-free mounting.