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...




4 Filter Reverse Osmosis (RO) Set




What's included in the set:
Upgrade Options

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.
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