WDI EcoFlush™ and PF/2 Energizer™ Replacement Systems The M-101526-F31K Flushmate system includes the necessary hardware to retrofit into toilets with WDI EcoFlush B8100, B8104, B8106, B8106S, or PF/2 Energizer 150-403. Easy installation. Free Shipping. Do you own a pressure assist toilet with a PF/2 Energizer or WDI EcoFlush system? Consumers wanting to replace these products have the option to retrofit the Flushmate system into the same toilet. Flushmate is the world leader in pressure assist technology. "I purchased the American Standard toilet and Ecoflush B8104 power vessel stop working after five months. Contact Ecoflush tech support almost impossible. No warranty support. Replace the Ecoflush with Flushmate and have no problem any more." ~ Alexanre Z. The Flushmate M-101526-F31K 1.6 GPF Replacement System, is designed to retrofit into toilets containing the following brands: PF/2 Energizer 150-403, 1.6 gpf System WDI EcoFlush B8100 Series, Dualy Flush 1.6 / 1.1 gpf WDI EcoFlush B8104 Series, 1.1 gpf WDI EcoFlush B8106 Series, 1.6 gpf WDI EcoFlush B8106S Series, 1.6 gpf The Flushmate M-101526-F31K includes the Flushmate M-101526-F3 1.6 gpf complete system with a replacement universal handle kit, locknuts and gasket. The Flushmate M-101526-F31K 1.6GPF Replacement system is designed to work with existing pressure assist toilets that were originally equiped with the PF/2 Enigizer 150-403 or WDI EcoFlush B8100, B8104, B8106 1.6 GPF systems. Toilet Types Two Piece Toilet A two piece t