• Set of five 12" inline, i-type water filters with 1/4" male posts. Sediment filter, Pre Carbon filter, UF Membrane, Post Carbon filter and Alkaline Mineral filter.

    Ultrafiltration Membrane Sets

    From $59

    0.01 micron filtration

    1/4” push-connect Ultrafiltration (UF) Water Filter Replacement Kits for inline point of use water filtration systems, home and office water coolers, ice makers and refrigerators.

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    4 Filter UF Set

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    5 Filter UF Set

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  • Set of five 12" inline, i-type water filters with 1/4" male posts. Sediment filter, Pre Carbon filter, UF Membrane, Post Carbon filter and Alkaline Mineral filter.

    Reverse Osmosis Membrane Sets

    From $79

    0.0001 micron filtration

    1/4" push-connect Reverse Osmosis (RO) Water Filter Replacement Kits for inline point of use water filtration systems, home and office water coolers, ice makers and refrigerators.

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    4 Filter RO Set

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    5 Filter RO Set

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Front Cover of the Undersink Ultrafiltration system

The RainTree™ System

The RainTree™ Tankless Undersink System is an advanced multi-stage, point-of-use drinking water purification system which produces superior quality, great tasting water for a fraction of the cost of bottled water.

0.01 micron Ultrafiltration means you can say goodbye to Microplastics!

Arrives pre-assembled so all you have to do is connect it to your water line.

NO electricity, pump, or waste line.

Filter replacement is easy too! Once a year, pull the colored caps off the filter ends and pop the used filters out. Snap the new ones in, flush, and you’re all set.

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Image of all 6 of our water filters. Sediment filter, Pre Carbon filter, UltraFilter, Reverse Osmosis Membrane, Post Carbon filter, and Alkaline Mineral filter. These are 12” inline, i-type water filters. The filters have a 1/4” male port on each end.

Pre-Filter Sets & Single Filters

We offer single filters and pre-filter sets for individual purchase.

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Fittings & Installation Kits

Supplies for filter changes and installations.

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