Ultrafiltration (UF)
Reduces contaminants including chlorine, pesticides, herbicides, disinfection byproducts DBPs, microplastics, bacteria, and cysts while preserving beneficial trace minerals.
4 Filter Ultrafiltration (UF) Set
- Sediment + Carbon Filter
- Pre Carbon Filter
- Ultrafilter Membrane
- Post Carbon Filter OR Alkaline Mineral Filter
- Optional No-Tool Fittings
5 Filter Ultrafiltration (UF) Set
- Sediment + Carbon Filter
- Pre Carbon Filter
- Ultrafilter Membrane
- Post Carbon Filter
- Alkaline Mineral Filter
- Optional No-Tool Fittings
Reverse Osmosis (RO)
Reduces contaminants including chlorine, pesticides, herbicides, disinfection byproducts DBPs, forever chemicals PFAS, microplastics, bacteria, viruses, cysts, fluoride and total dissolved solids TDS.
4 Filter Reverse Osmosis (RO) Set
- Sediment + Carbon Filter
- Pre Carbon Filter
- Reverse Osmosis Membrane
- Post Carbon Filter OR Alkaline Mineral Filter
- Optional No-Tool Fittings
5 Filter Reverse Osmosis (RO) Set
- Sediment + Carbon Filter
- Pre Carbon Filter
- Reverse Osmosis Membrane
- Post Carbon Filter
- Alkaline Mineral Filter
- Optional No-Tool Fittings
Why Choose Raintree™ Filters?
Discover the benefits of choosing our premium water filters
Premium Quality
Our filters are made with the highest quality materials for superior performance and unbeatable taste
Certified Safe
NSF-Certified materials
Meets or exceeds industry safety standards
Long Lasting
1-year filter life
Subscribe & Save with convenient auto-ship
Easy Installation
Simple installation process
Easy to follow written and video instructions
Great Value
Competitive pricing without compromising on quality or performance
Raintree™ under sink
Ultrafiltration System
The RainTree™ Tankless Undersink Ultrafiltration System is a high-performance, space-saving, multi-stage water purifier that delivers fresh, great-tasting water—without the cost or waste of bottled water.
0.01 micron Ultrafiltration and activated carbon remove chlorine, VOCs, THMs, microplastics and other unwanted contaminants, while leaving beneficial minerals in the water.
Installation and filter changes are quick and easy. Replace the filters once per year and enjoy continuous fresh, pure water in seconds!
Subscribe & Save: Annual auto-ship replacement filters available.
Raintree™ water filters
Pre-Filter Sets & Singles
Sediment Filters, GAC Filters, Carbon Block Filters, Ultrafilter Membranes, Reverse Osmosis Membranes, Alkaline Mineral Filters, KDF Filters, Antibacterial Filters, and AOA Filters.
RainTree™
Fittings & Installation Kits
Miscellaneous supplies for filter changes and installations. Tubing, cutters, refrigerator connection kits, and extra fittings.
Raintree™ Water Filters
Compatible With Leading Bottleless Water Cooler Brands
Wellsys
• JCP-8020
• 8020W
• 8020B
• Venus
• Elite
• W5
• W9
• W9000CT
• WS 11000+
• i12
• i15
• i16
• WS 9000
• WS 12000
• WS 15000
Note: Wellsys® models use two different filter styles. Some systems use standard inline filters (compatible with our replacements), while others use proprietary twist-on cartridges (not compatible). Model name, number, or age alone isn’t a reliable indicator of filter type.
If you’re unsure which style your system uses, please contact us. To help us confirm compatibility quickly, we may request your model number and clear photos of your current filters or the inside of the filter compartment.
Culligan Quench
Crystal Quest
• CQE-WC-00900 Hybrid Ultrafiltration Bottleless Water Cooler
• CQE-WC-00902 Hybrid Ultrafiltration and Reverse Osmosis Bottleless Water Cooler
• CQE-WC-05900 Sharp Ultrafiltration and Reverse Osmosis Bottleless Water Cooler
• CQE-WC-05902 Sharp Ultrafiltration Bottleless Water Cooler
• CQP-WC-05901 Turbo UF and RO
• CQP-WC-05903 Turbo UF
• CQE-WC-00906 Turbo UF
*Note: If you are transitioning from the original factory Crystal Quest water filters to our Raintree™ replacement filters, you will need to add our "no-tool fittings" and 3-4 feet of extra tubing to your order for the inital conversion as the fitting to tubing connection is a different style.
**If you have a Crystal Quest UF+RO cooler, you can use our filters (with the no-tool fittings), however, you should choose our Reverse Osmosis replacement filter set as we do not have a combination UF+RO filter set.
WaterLogic
Flowline
• 8020
• 8020W
• 8020B
• 4011
• 4011W
• 4011B
• 350
Bluline
• Venus
• 8020
• 8020W
• 8020B
Global
• G3
• G4
• G5
• G6
Hyundai / Waco / Wacotec
• Romeo 1
• Romeo 2
• Romeo 3
• Juliet 1
• Juliet 2
• Juliet 3
• W2 340S
• W2 310L
• Poseidon
Jintec
• Venus
• Titan
• Hercules
International H2O
• H2O-105
• H2O-210M
• H20-500
• H2O-1500
• H2O-2200
• H2O-2250
• H2O-2500
• H2O-2500P
• H2O-3000
• H2O-4000
AquaVerve
• Pacifik PF5615
• Standard STD5615
• Oceanik XFK5615
• UNIV5615
Pure Water Coolers
PWC-1000T
PWC-1010
PWC-1500
PWC-2000
PWC-400
PWC-500
PWC-600
PWC-7000
PWC-3500
Vertex
FK-104 Vertex
PWC-1000T Vertex
PWC-1500 Vertex
PWC-1010 Vertex
PWC-3500 Vertex
PEC-7000
H2O-2200
H2O-2500
FilterWater
• FW-400
• FW-500
• FW-650
• FW-1500
• FW-2200
• FW-2500
• FW-FLOW
• FW- i020
• FW-210 under sink