Upgrade Your Door with the Dorma BTS75V Floor Spring Enhance the functionality and style of your door with the Dorma BTS75V Floor Spring. Crafted by Dorma Hardware, this floor spring is designed to provide smooth and reliable operation for doors up to 120kg in weight. Effortless 90 Degree Hold Open Enjoy the convenience of a 90-degree hold open feature, allowing for easy passage through the doorway. Maximize the functionality of your door with the silver finish that complements any decor. Adjustable Strength and Hold Open Options Customize the strength of the floor spring with adjustable sizing from 1 to 4. Choose between hold open and non-hold open options to suit your specific needs. Reliable and Tested Performance Rest assured of the quality and durability of the Dorma BTS75V, tested to BS EN1154 standards. CE marked for compliance with European safety regulations. With a maximum door width of 1100mm, this floor spring offers versatility and security for vario