Bristan Empura Cartridge All Bristan products are quality tested and carry robust guarantees against manufacturing defects. Quality testing, performed by Bristan’s own quality engineers throughout the production process, and market testing before launch ensures that all products meet the very best quality standards. Features: Clear step by step fitting instructions Economic to run-less than 1p a litre Convinient to use Removes all bad tastes and smells Filters sediment, dirt and water Tech Specs: Product Width: 50mm Product Depth: 50mm Product Height: 315mm Product Weight: 320g Material: Plastic Minimum Operating Pressure: 0.2 Maximum Operating Pressure: 6 Inlet Connection: 15mm Sadle Valve