Aqua Flo 475QC-4 4-Stage 75 GPD Quick Change RO System

Aqua Flo 475QC-4 4-Stage 75 GPD Quick-Change RO System

The Aqua Flo 475QC-4, model 20010023, is a 4-stage under-sink reverse osmosis drinking water system designed for residential single-faucet applications. It uses quick-change twist-lock cartridges to make routine filter replacement easier than traditional filter housings.

This system includes a 75 GPD reverse osmosis membrane and is designed to provide filtered drinking water through a dedicated faucet. Based on the product data, the system includes the RO system and storage tank, filters, designer chrome faucet, and installation kit.

Key Features

• 4-stage reverse osmosis drinking water system
• 75 GPD RO membrane
• Quick-change cartridge design
• Designed for under-sink installation
• Single-faucet residential drinking water application
• Includes storage tank, filters, chrome faucet, and installation kit
• Compatible with municipal water and potable well water
• Uses Aqua Flo replacement filters and membrane

Filtration Stages

Stage 1: Sediment pre-filter
Uses Aqua Flo filter 65010086. This 5-micron sediment filter helps reduce silt, dust, rust, sand, and particulate matter before water reaches the carbon filter and RO membrane.

Stage 2: Carbon pre-filter
Uses Aqua Flo filter 65010088. This carbon filter helps reduce chlorine, chloramine, taste, odor, and certain chemical contaminants before water reaches the RO membrane.

Stage 3: Reverse osmosis membrane
Uses Aqua Flo membrane 70010014. The 75 GPD TFC RO membrane is designed to reduce dissolved solids and other contaminants commonly targeted by reverse osmosis filtration.

Stage 4: Carbon post-filter
Uses Aqua Flo filter 65010088. This final polishing filter helps improve the taste and odor of the filtered drinking water before it reaches the faucet.

Replacement Filters

• 1 Aqua Flo 65010086 sediment filter
• 2 Aqua Flo 65010088 carbon filters
• 1 Aqua Flo 70010014 75 GPD RO membrane

Sediment and carbon filters are typically replaced every 3-6 months, depending on feed water quality and usage. RO membrane replacement interval should be verified using the manufacturer's recommendations and local water conditions.

What's Included

• RO system
• Storage tank
• Filters
• Designer chrome faucet
• Installation kit

Operating Requirements

• Production rate: 75 gallons per day
• Maximum TDS: 2000 ppm
• Feed water pressure: 40-100 PSI
• Temperature range: 40-100°F
• pH range: 3-11
• Water hardness: less than 7 grains per gallon
• Iron: less than 0.2 ppm
• Manganese: less than 0.05 ppm
• Hydrogen sulfide: 0 ppm
• Turbidity: less than 1.0 NTU

Best For

• Homeowners who want an under-sink reverse osmosis system
• Customers who prefer quick-change filter maintenance
• Residential drinking water applications
• Single-faucet RO installations
• Municipal water users
• Potable well water users with appropriate water testing

Not Recommended For

• Whole-house filtration
• Commercial high-flow applications
• Tankless RO shoppers
• Non-potable or microbiologically unsafe water without proper disinfection
• Customers who need verified certified contaminant-reduction claims unless documentation is provided

Well Water Note

This system may be used with potable well water, but well water should be professionally tested before selecting treatment equipment. Reverse osmosis systems are not intended to make microbiologically unsafe water safe by themselves. If bacteria, viruses, or other microbiological concerns are present, additional disinfection such as UV treatment may be needed.

Important Performance Note

Contaminant reduction performance can vary based on feed water quality, water pressure, temperature, usage, and filter condition. Refer to the manufacturer's specifications, certification data, or performance sheet for verified reduction claims.