Adjustable Design: Features adjustable height and flush settings to fit most standard cisterns. WRAS-approved for quality and reliability, ensuring efficient water-saving performance. Universal Fit: Designed with a 1.5" base outlet to fit most standard toilet systems. The syphon’s compact size makes it an ideal replacement for older or faulty cistern mechanisms. Simple Installation: Before fitting, ensure the metal hook moves freely and smoothly. Proper adjustment of the lever arm is essential for smooth and effective flushing performance. Durable Mechanism: Built with high-quality materials and a durable silicone seal to prevent leaks. Ensures consistent and dependable flush operation over time. Optimised Functionality: Designed to deliver consistent performance when installed correctly. Adjustable flush settings allow you to customise water usage as needed. This is a very simple mechanism product and reliable. Trick is fitting and adjusting the lever arm which so easy for experienced plumber. if you need help please feel Free to e-mail us. We are expert of bathrooms and plumbing products and fitting. Happy to help Plastic Arm lever attached to Toilet Flush Handle must be adjusted when connected to the Syphon's metal hook in order to Flush properly Please make sure you adjust the WC lever plastic lif arm and cennect it to the FLush. If you can't flush it easy that means you have not adjusted the lift arm and arm not pulling the syphon up to release the water Height is 24.3cm, Width is 19.5cm and edpth is 8cm, Manufacturer: Housler