Reverse Osmosis • 4 Filter Replacement Set

  • 100% Satisfaction & Compatibility Guarantee
  • Eliminate harmful contaminants like chlorine, VOCs, THMs, PFAS, Microplastics
  • Extend the life of your water cooler and filtration system
  • Enjoy better-tasting, cleaner water instantly
  • Removes 99.999% of contaminants, including fluoride
  • Alkaline Mineral Filter upgrade replenishes some healthy minerals lost during the RO process
  • Save money compared to bottled water
  • NSF Certified

• Wellsys • Hyundai • International H2O • Flowline • Bluline • Crystal Quest • Quench • Jintec • AquaVerve • Global • Pure Water Coolers • Pure n Natural • Abbey Spring • And more...

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

    1 - Sediment + Carbon Filter

    New and improved, now with added carbon block! 

    Dual-stage filtration designed for superior water purification. In the first stage, it effectively captures particles such as sand, silt, rust, dust, dirt, and pipe residue.

    The second stage features a carbon block that removes chlorine, volatile organic compounds (VOCs), trihalomethanes (THMs), and other harmful substances, enhancing water quality and taste. 

    The large surface of the carbon block slows water flow, increasing contact time with the filtration media for improved contaminant removal. Additionally, this filter helps protect and extend the lifespan of downstream filters, ensuring long-lasting performance.

    More Info 
  • Pre Carbon GAC water filter. Used for water coolers and undersink water filtration systems.

    2 - Pre Carbon Filter

    Granular Activated Carbon filter uses a process called adsorption. Contaminants are attracted and adhere to the carbon material like velcro. This filter removes an abundance of impurities from the water, including chlorine, VOCs, THMs, and bad taste and odor. The Pre Carbon filter also protects and extends the life of the Ultrafilter Membrane. 

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  • 3 - Reverse Osmosis Membrane Filter

    A semi-permeable membrane where only water molecules are able to pass through. The pores in the membrane are so small, they can trap impurities as tiny as 0.0001 micron. This includes all dissolved solids (TDS) such as salt, trace minerals, ions, fluoride and microplastics. Reverse Osmosis filtration is used when removing everything from the water is desired.

    More Info 
  • Post Carbon GAC water filter. Used for water coolers and undersink water filtration systems.

    4 - Post Carbon Filter

    20x40 mesh Granular Activated Carbon filter works as a "polishing" filter, improving taste and odor.

    More Info 
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Upgrade Options

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

Add these to your order and make your filter changes even easier!

• 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 - Not sold anywhere else.

• The 4-filter RO fittings upgrade includes 9 fittings. 

• They don't need to be replaced every time. You only need to buy them once.

Alkaline Mineral Filter

Made of Carbon Block and functional ceramic balls, the Alkaline Mineral filter adds beneficial trace minerals and slightly increases the pH, making the water more alkaline. Additionally, it works to improve taste and odor.

This filter can be used as an alternative to the standard Post Carbon Filter.

More Info

Raintree™ water filters

Compatibility Chart

Wellsys

  • JCP-8020 
  • Venus
  • W5
  • W7
  • W9
  • 11000+

Note: Some of the 2024 (and newer) Wellsys cooler models now use twist-on style filters. Wellsys coolers made before 2024 will use the filters we have.

Flowline

  • 4011
  • 4011W
  • 4011B
  • 8020
  • 8020W
  • 8020B
  • 350

Bluline

  • 8020
  • 8020W
  • 8020B
  • 4011
  • 4011W
  • 4011B
  • 350

Global

  • G3
  • G4
  • G5
  • G6

Hyundai / Waco

  • Romeo 1
  • Romeo 2
  • Romeo 3
  • Juliet 1
  • Juliet 2
  • Juliet 3
  • W2 340S
  • W2 310L
  • Poseidon 

Jintec

  • Venus
  • Titan
  • Hercules

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

International H2O 

  • H20-2500
  • H20-2500P
  • H20-500

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 Water Filters

FK-104 Vertex

PWC-1000T Vertex

PWC-1500 Vertex

PWC-1010 Vertex

PWC-3500 Vertex

PEC-7000

H2O-2200

H2O-2500

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!