Yale Doormaster Universal Pvcu Lock 35mm Backset Option:35mm Backset seed beds and bedding plants Built seed beds and bedding plants Built in solar rechargeable power pack Works throughout the night Weather resistant housing Easy to use Sonic pulse and vibration every 50 seconds Coverage up to 30m² ergonomic pump handle for easy pressurisation Wide filling aperture enables all the components to be placed inside the bottle 1 year guarantee *max fill level is stated in order to provide a sufficient air gap for pressurisation of the bottle "Replaces 100% of PVCu door locks with a backset of 35mm or 45mm and a 16mm faceplate Central Hook protects against attack 1 piece easy adjustment Mushroom Rollers 1 piece adjustable Rollers create a weather tight seal Fixing tabs for easy and secure fitting Includes trim to fit in to eurogroove and hide any exposed original door prep detail