FLUIDMASTER Fill Valve 400 3/8 Plastic Bottom, The 400UK will work in most toilets including some 1 Piece toilet models.
No. 1 best selling fill valve in the world, engineered to last and built with revolutionary, pilot fill valve technology that works with water pressure rather than against it. This bottom mount valve is highly configurable to adapt to many applications.
FLUIDMASTER Fill Valve 400 3/8 Plastic Bottom 400E-027-P25