400H Toilet PerforMAX® Fill Valve

Fluidmaster 400H Toilet Fill Valve – One small repair. One less thing to worry about. The 400H is Fluidmaster’s most versatile, performance-driven toilet fill valve—engineered for pros but simple enough for DIY installs. Whether you’re fixing a noisy tank, upgrading for water savings, or restoring a slow refill, the 400H does it all. Key Benefits Maximized Flushing Power Vortex refill delivers higher bowl refill rates—no more weak flushes or double-flushing. Quiet Operation Precision fill technology reduces noise during tank refill—ideal for homes with night-time flush sensitivity. Universal Fit, Simple Install Works with all major brands. Adjustable height (9″–14″) ensures it fits more toilet tanks. Installs in under 10 minutes with no guesswork. Water-Saving Control Fine-tune water usage with an integrated dial and customizable refill tube for efficient performance across GPF ranges. Durable, Long-Lasting Design Corrosion-resistant materials, chlorine- and hard water–resistant seals, and a solid twist-lock adjustment keep this valve working like new—flush after flush. Installation Made Easy No special tools required. Clear markings and included refill clip simplify alignment and reduce install time. Ideal for quick call-outs or proactive home maintenance. Specs & Compatibility Fits: 2″ and 3″ flush valve toilets (1.28 GPF – 3.5 GPF) Height Range: Adjustable from 9″ to 14″ Materials: High-grade plastic, silicone seal Certifications: Code approved, CSA certified Warranty: 7-year limited Compatible with most major brands including Kohler®, American Standard®, Toto®, Glacier Bay®, and more. Why Pros Choose the 400H Fluidmaster is the hardest working brand in the business—trusted in more toilets than all other brands combined. When performance matters, and time is money, pros choose the 400H to get the job done right the first time. Fluidmaster invented the toilet fill valve technology in 1957. ** DO NOT USE IN-TANK DROP-IN TOILET BOWL CLEANERS CONTAINING BLEACH OR CHLORINE. USE OF SUCH PRODUCTS WILL RESULT IN DAMAGE TO TANK COMPONENTS AND MAY CAUSE FLOODING AND PROPERTY DAMAGE. USE OF SUCH PRODUCTS WILL VOID THIS WARRANTY. Instead, we recommend using Flush ‘n Sparkle® automatic toilet bowl cleaner. WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.