Experience ultra-clean water with the Purifiner VectaTwist VTRO400 RO System. Featuring 3/8" fittings, a 400 GPD fully-encapsulated RO membrane, and quarter-turn pre- and post-filter cartridges, this system ensures consistently high-quality water. Utilizing a corrosion-resistant stainless steel mounting bracket and a pressure gauge to monitor filter life, the VectaTwist ensures efficient and reliable purification for years to come. Featuring quick change filters that ensure a completely DIY filter change process. Enjoy better-tasting, healthier water with Purifiner!