Fluidmaster Inc 400H-002-P10 Toilet Fill Valve

Product Description

The FLUIDMASTER INC 400H-002-P10 is a high-performance toilet fill valve engineered for fast, reliable tank refill across a wide range of residential toilet configurations. Marketed under the Performax 2.0 platform, this fill valve delivers a refill rate two times faster than standard fill valves, reducing cycle time after each flush. The anti-siphon design meets code requirements for backflow protection, and the water-saving bowl water level adjustment allows the installer to fine-tune the water level in the bowl independently — reducing water consumption without sacrificing flush performance. Licensed plumbers and skilled DIYers handle this installation as routine maintenance work.

This fill valve is designed for use in 1.28 GPF single-flush toilets, dual-flush toilets, and 1.6-gallon toilets equipped with 2-inch or 3-inch flush valves. It also fits older high-gallon toilets manufactured prior to 1994 that use 2-inch flush valves. Suitable for residential applications in both new installation and retrofit scenarios. Compatible toilet brands cited in product data include Kohler, Toto, and American Standard high-efficiency toilet models.

Key Features

• Refill rate two times faster than standard toilet fill valves
• Bowl water level adjustment for independent regulation of bowl fill volume
• Anti-siphon design meets code approval requirements for backflow prevention
• Compatible with 1.28 GPF, dual-flush, and 1.6-gallon toilet platforms
• Fits both 2-inch and 3-inch flush valve toilets
• Designed for straightforward installation without special tooling

Compatibility

Fits toilets using 2-inch or 3-inch flush valves, including 1.28 GPF, dual-flush, and 1.6-gallon models from Kohler, Toto, and American Standard, as well as older high-gallon toilets with 2-inch flush valves manufactured prior to 1994.

Installation Notes

Installation is performed by a licensed plumber or qualified DIYer. Shut off the water supply at the fixture stop valve and flush the toilet to drain the tank before removing the existing fill valve. Follow local plumbing code requirements — including IPC provisions for anti-siphon protection — when completing the installation. Do not overtighten the supply line connection or the locknut securing the valve to the tank.

Technical Specifications

• Flow Rate: 1.28 GPF compatible; also fits 1.6-gallon and dual-flush configurations
• Flush Valve Compatibility: 2-inch and 3-inch flush valves
• Anti-Siphon: Yes, code approved
• Package Weight: 8 pounds
• Package Quantity: 10 units per pack
• Unit of Measure: EA

Standard Information

• Brand: FLUIDMASTER INC
• Manufacturer Part Number: 400H-002-P10