The Aquavi Twist 3-stage Under-Sink Water Filtration System removes Lead, Odour, and Chlorine. It uses Active Minerals technology to leave in all the beneficial minerals., resulting in a natural and refreshing taste. This system is effective in removing PFAS. Aquavit twist quick-change systems are designed to meet the demands of discerning consumers who seek the highest quality. Aquavit Twist drinking water systems with quick change cartridges offer the convenience of easy cartridge replacement with no sumps. The twist quick-change system is specifically designed for easy handling and maintenance. It features a hinge bracket for convenient access. The cartridges can be removed with a simple 1/4 turn, and there is no need to disconnect the tubing when replacing membranes. Integrated check valves between cartridges and the membrane prevent back-flow, and the double O-rings on the cartridges prevent leaks. Quick connect fittings make installation a breeze.