Nimbus WaterMaker 5 Replacement Water Filter Kit - Efficient Low Waste

In this review of the Nimbus WaterMaker 5 Replacement Water Filter Kit, the bottom line is simple: this kit is for homeowners or renters who want fast, reliable under-sink reverse osmosis water with reduced waste. The reviewer found the most compelling reason to buy is its unique membrane configuration that cuts water waste by 50% while still delivering a 50 gpd membrane that refills the storage tank quickly. The hygienically sealed cartridges and color-coded fittings also make replacement and service noticeably less fiddly than many under-sink kits.

Key Features

• 50 gpd membrane: Provides rapid filtration and refills the storage tank quickly so there is more water available when needed.
• Reduced water waste: The unique membrane layout lowers wastewater by about 50%, making the system more efficient than conventional RO systems.
• Five-stage filtration: Combines sediment, multiple carbon stages and RO membrane for comprehensive reduction of contaminants like TDS, lead and fluoride.
• Coconut carbon post-filtration: Final polishing by high-quality coconut carbon improves taste and odor for fresher drinking water.
• Hygienically sealed cartridges: Color-coded fittings and sealed cartridges simplify installation and reduce the chance of contamination during service.
• Tested to NSF/ANSI 58: Certified reduction performance for TDS, arsenic, fluoride, lead and cysts gives confidence in contaminant removal claims.

Who It's For

The WaterMaker Five kit is ideal for households that use reverse osmosis for daily drinking and cooking water and want a system that balances flow and efficiency. It suits buyers who prefer a cartridge-based replacement approach and appreciate the faster faucet flow and reduced wastewater compared with older RO designs.

It is less appropriate for users who need whole-house filtration or who require ultra-compact under-sink footprints; also those who do not want to perform periodic cartridge swaps should look at maintenance-free alternatives. The kit is aimed at people comfortable with basic DIY under-sink plumbing or willing to hire a short installation service.

Pros & Cons

Pros

• Reduced water waste by 50% improves efficiency and lowers drain volume compared with many RO kits.
• High 50 gpd membrane provides better flow and faster tank refill for everyday use.
• Top-quality coconut carbon final stage improves taste and removes residual odors.
• Hygienically sealed, color-coded cartridges make replacement straightforward and cleaner.

Cons

• As a multi-cartridge RO system it still requires periodic cartridge changes and routine maintenance.
• The kit is designed for under-sink installation and is not intended for whole-house filtration needs.

Specifications

Brand	Nimbus
Model / Compatibility	WaterMaker Five replacement kit (WM5) compatible models listed
Membrane Capacity	50 gpd reverse osmosis membrane
Filtration Stages	Five-stage configuration with coconut carbon post-filter
Certifications	Tested by Water Quality Association to NSF/ANSI Standard 58
Material	Plastic cartridges with coconut carbon media
Item Weight	2.0 pounds

Our Verdict

The Nimbus WaterMaker 5 Replacement Water Filter Kit is a practical choice for kitchen under-sink reverse osmosis users who want better flow and substantially lower wastewater. With NSF/ANSI 58-tested reduction performance, coconut carbon polishing and easy-to-replace sealed cartridges, it represents good value for anyone seeking fresher tasting water and a more efficient RO setup.

Frequently Asked Questions

How much water does the membrane produce?
The membrane is rated at 50 gpd, which delivers faster tank refill and improved faucet flow.

Does the system reduce lead and fluoride?
Yes, the kit has been tested by the Water Quality Association against NSF/ANSI Standard 58 for reduction of TDS, lead, fluoride, arsenic and cysts.

Is installation difficult?
Installation is made easier by color-coded fittings and sealed cartridges, but basic under-sink plumbing skills or a short professional install are recommended.