ALL_MaP_PREMIUM-HETs provide superior performance and efficiency for residential or light commercial applications where water discharged from other fixtures, appliances, or processes, etc., near the toilet fixture can help transport waste through the drain pipes.
Qualifying tank-type  residential/light commercial toilet fixtures must:

• Be certified to WaterSense®
• Have an effective flush volume no more than 4.0 litres (1.10 gallons*) – 14% BELOW the current WaterSense® requirement! (With special unique requirements for dual-flush models)
• Have a MaP flush performance score of at least 600 grams – 170% of the current WaterSense® requirement!
• WaterSense allows 1.6 gallon (6.0 litre) dual-flush toilets – NOTE:  UNLIKE THE U.S. EPA’s WaterSense PROGRAM (AND UNLIKE CALIFORNIA), MaP PREMIUM DOES NOT INCLUDE NOR ALLOW ANY TOILETS WITH A 1.6 GALLON (6 LITRE) FLUSH.  Instead, MaP PREMIUM sets the maximum flush volume at 1.28 gallons (4.8 litres) for the full flush on a dual-flush fixture.  Single-flush toilets are subject to the 1.1 gallons per flush maximum.

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