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The FLUSHMATE 93001054 is a pressure-assist flush tank unit designed for use in the 503 Series F31 toilet system. Unlike gravity-fed tanks, this unit uses pressurized water supply to store and release a high-velocity flush, reducing the water volume needed per cycle while increasing bowl clearing performance. It fits inside the porcelain outer tank of compatible toilets and is serviced or replaced by licensed plumbers and experienced trade professionals during fixture maintenance or retrofit work.
This unit is intended for residential and light commercial toilet applications where the 503 Series F31 pressure-assist system is specified. It is a direct replacement unit for the internal flush mechanism in toilets built around the FLUSHMATE 503 Series F31 platform. Installers typically encounter this unit during tank rebuilds, leak repairs, or full pressure-vessel replacements when the original unit has failed or lost pressure retention.
Designed as a direct replacement for the FLUSHMATE 503 Series F31 pressure-assist flush system. Specific toilet model compatibility should be verified against the original toilet manufacturer documentation before installation.
Installation and replacement of pressure-assist tank units should be performed by a licensed plumber familiar with pressurized flush systems. Shut off the water supply and flush the toilet to depressurize the unit fully before beginning disassembly. Do not attempt to disassemble the sealed pressure vessel itself, as internal pressure can cause injury. Follow all applicable local plumbing codes and the toilet manufacturer installation instructions during replacement.
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