Fluidmaster® recommends Fluidmaster®'s 400A universal toilet fill valve is the #1 best selling fill valve in the world. A universal design, with an adjustable height from 9 to 14 in to fit most toilets. The 400A offers quick refill rates and replaces ballcocks and other toilet fill valves. A trusted and proven toilet fill valve, the 400A is built to last from corrosion-resistant materials for a long lifespan. This code approved, anti-siphon design, won't contaminate the fresh water supply. Some toilet models not supported Glacier Bay® or Niagara® flapperless toilets, one-piece toilets. Does not replace side entry valves. Fluidmaster®'s late founder invented the fill valve technology in 1958.

• The original 400A was first introduced in 1975
• The #1 selling fill valve in the world
• The #1 solution to fix noisy toilets
• Easy-to-install, universal fit
• EZ-Twist height adjusts from 9 to 14 to fit most toilets
• Trusted by toilet manufacturers and plumbers worldwide

• Instruction/Installation Manual https://assets.unilogcorp.com/187/ITEM/DOC/FLUIDMASTER_102761846_Instruction_Installation_Manual.pdf
• Video Link https://youtu.be/cbTEq_da4H8