Ultrafiltration • 4 Filter Replacement Set

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Free Shipping Over $55
100% Satisfaction & Compatibility Guarantee
Quick & Easy Installation
NSF-Certified Materials
Free Shipping Over $55
Replace Every 12 Months
Most Orders Ship Same-Day
Subscribe & Save 10%
Free Shipping Over $55
  • Set of 4 water filters. Sediment + carbon block filter, pre carbon GAC filter, Ultrafilter Membrane, post carbon GAC filter. Color coded no tool push fittings attached. Used for water cooler and undersink system filter replacement.
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4 Filter Ultrafiltration (UF) Set

4 Filter Ultrafiltration (UF) Set

$84.00 USD
$84.00 USD
Sale Sold out
Replace the Post Carbon Filter with an Alkaline Mineral Filter for $30?

Ultrafilter (UF) Set Includes four 12” inline filters:

RainTree™ Sediment + Carbon Filter

RainTree™ Pre Carbon Filter 

RainTree™ UltraFilter (UF) Membrane

RainTree™ Post Carbon Filter  OR  RainTree™ Alkaline Mineral Filter

• Filter lifespan may vary based on source water quality

• For use with potable municipal water

• Annual filter replacement is most common

• If source water is high in chlorine or sediment, Pre-Filter replacement is recommended ~6 months

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Pair of no-tool push fittings (one white and blue and the other is white and orange) for connecting water filters to tubing for water cooler filter replacement

NO-TOOL Fittings (Set of 8)

$16.00

Filter Set Components

Primary Filters
Raintree sediment + carbon block filter for water cooler and undersink water filtration systems

1. SEDIMENT + CARBON

  • New and improved, now with added carbon block!
  • Dual-stage filter design for better water filtration
  • Stage 1: captures particles such as sand, silt, rust, dust, dirt, and pipe residue
  • Stage 2: features a carbon block that reduces chlorine and other unwanted impurities
Pre Carbon GAC water filter. Used for water coolers and undersink water filtration systems.

2. PRE CARBON

  • Granular Activated Carbon filter uses adsorption process
  • Contaminants are attracted and adhere to the carbon material like velcro
  • Reduces chlorine, VOCs, THMs, and other unwanted impurities
  • Protects and extends the life of the Ultrafilter Membrane
Ultrafilter membrane water filter. Used for water coolers and undersink water filtration systems.

3. UF MEMBRANE

  • Semi-permeable membrane that physically traps suspended particles as small as 0.01 micron
  • Reduces bacteria, cysts, microplastics
  • Excellent contaminant removal
  • Allows beneficial trace minerals and fluoride to remain in the finished water

Choose Your Final Stage

Select your polishing filter
Post Carbon GAC water filter. Used for water coolers and undersink water filtration systems.

4. POST CARBON

  • Premium 20x40 mesh granular activated coconut shell carbon
  • Improves taste and reduces unwated odors
  • Delivers a smooth, fresh finish
  • Completes the filtration process for optimal water quality
Alkaline Mineral Carbon block water filter. Used for water coolers and undersink water filtration systems.

4. ALKALINE MINERAL

  • Carbon block and functional ceramic ball media
  • Adds beneficial trace minerals for better-tasting water
  • Raises pH to produce mildly alkaline water
  • Improves taste and reduces odors
  • Provides a crisp, refreshing finish
  • Final conditioning stage for optimal water quality
+ $30.00

Optional Add-On

Set of 4 water filters. Sediment + carbon block filter,, pre carbon filter (GAC filter), UltrafilterMembrane, post carbon GAC filter. Color coded no tool push fittings attached. Filters used for water cooler and undersink system filter replacement.

NO-TOOL FITTINGS

  • Patented quick-release, no tools or fingernails needed
  • Color coded to indicate direction of water flow, making filter changes fast
  • Only available at Wholesale Watercooler
  • The 4-filter UF fittings upgrade includes 8 fittings
  • They don't need to be replaced every time - you only need to buy them once
+ $16.00

Why Choose Raintree™ Filters?

Pure, clean water for your entire home

Pure water

Made with the highest quality materials for superior performance and great taste

Advanced protection

Multi-stage filtration protects your family from harmful chemicals and bacteria

Easy installation

Quick and easy filter replacements

Long-lasting filters

Filters last up to 12 months, saving you money and reducing waste

Raintree™ water filters

Compatibility Chart

Wellsys

• JCP-8020

• Venus

• W5

• W9

• W9CT

• WS 11000+

• i12

• i15

• i16

Note: Some of the 2024 and newer Wellsys water cooler models now use twist-on style filters. Wellsys coolers made before 2024 will use our RainTree™ Replacement Filters. If you are unsure about compatibility, please reach out to us. We're always happy to help.

Flowline

• 8020

• 8020W

• 8020B

• 4011

• 4011W

• 4011B

• 350

Bluline

• 8020

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-2500

• H2O-2500P

• H2O-500

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.

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

If you don't see your make/model on our list and you are unsure of compatibility, please reach out to us for assistance. We're always happy to help!

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