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300- 7,000 GPD Whole House Reverse Osmosis System | Crystal Quest

Crystal Quest SKU: CQE-CO-02033R

Reduces up to 99% of dissolved solids, including arsenic, fluoride, nitrates, PFAS, and heavy metals, throughout the property.

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Regular price $2,52700
Regular price Sale price $2,52700
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Shipping, Returns, & Warranties

Orders Processing: We offer fast and reliable shipping across the continental U.S., with free shipping available on orders over $200 (exclusions may apply based on brand and product type). Orders are typically processed within 1–2 business days and transit time is 4–8 business days. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your contact details are accurate at checkout. For questions about delivery timelines, shipping eligibility, or special requests, feel free to contact us directly.

Order Confirmation: As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system.

30 Day Returns: If your order arrives damaged, we will exchange you a replacement. Our return policy cover from the date of purchase. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. Defective products are eligible for free returns, with options for a refund or replacement. Customer remorse returns may incur return shipping fees and restocking fees. Refunds are processed within a specified timeframe, subject to restocking fees if applicable. Late or missing refunds should be addressed with your bank or credit card company first. Exchanges may be accepted for defective or damaged items. Shipping costs for returns are typically the responsibility of the customer, except in cases of damaged products. For more details, visit our Refund Policy Page.

View our Full Brand Warranty Page Here

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Verified Customer Reviews

4.0 out of 5 from 4 product reviews

So far so good

Delivered quickly and accurately. Easy to install with some experience.

Our whole house has beautiful water!

I would most definitely purchase from you again.

Crystal Quest Reverse Osmosis Whole House System

This whole house reverse osmosis system treats incoming water before it reaches connected faucets, showers, and appliances. Production capacities range from 300 to 7,000 gallons per day for residential and light commercial applications.

Select the configuration according to the property’s requirements. Daily water use determines production capacity, while peak demand determines storage and delivery pumping. Source water conditions, utilities, plumbing connections, and installation space should be reviewed before ordering.

What does it do?

  • Treats water at the main supply before distribution to connected fixtures.
  • Reduces dissolved solids through reverse osmosis membrane separation.
  • Supports whole property use with production capacities from 300 to 7,000 GPD.
  • Stores and delivers purified water when a tank kit is selected.

How does it work?

  • Prefiltration helps protect the RO membrane. Cartridge types vary by system capacity.
  • Reverse osmosis membrane separates treated water from the concentrate stream.
  • Atmospheric storage tank builds a reserve while the RO system produces water.
  • Delivery pump supplies stored water to the property.
  • Float switches control production according to tank level.
Crystal Quest whole house reverse osmosis system

Benefits you will notice during ownership

This is the highest performing whole house RO platform in the product line and is backed by more than 30 years of product experience. Each configuration is designed for dependable property wide treatment, straightforward service, and long term ownership.

Fits more easily in your equipment area

The compact, lightweight frame keeps the installation organized without occupying unnecessary space. Its open layout also leaves the main components accessible for inspection and service.

Simpler filter changes and servicing

Prefilters, membranes, controls, and other serviceable components are positioned for easier access. This makes scheduled maintenance more straightforward and reduces unnecessary work around the system.

Configured around your water demand

The expandable platform supports multiple production capacities, storage tank sizes, delivery pumps, and optional finishing stages. Available configurations can be matched to household demand, source water, and available space.

Lower ongoing ownership demands

Efficient operation and replaceable service components help control routine operating and maintenance costs. With proper care and regular prefilter and membrane replacement, the system is designed to provide 15 to 20 years of service.

Tested before it reaches your home

Each system is factory tested before shipment and protected for transportation. This confirms system operation before delivery and helps reduce uncertainty during installation.

Confidence in its construction

The system is made in the USA, CE compliant, and built with Scientific World Products ISO certified components. These statements apply to the identified system and components without implying additional certifications.

Who is this system for?

Whole house residential use

For homes and cabins that need RO treated water at multiple fixtures, including kitchens, bathrooms, laundry areas, and connected appliances.

Larger and shared properties

For large homes, estates, and multifamily properties with higher daily demand and planned water storage.

Light commercial use

For compatible light commercial properties with established daily water demand, suitable utilities, and sufficient equipment space.

Choose the configuration

Step 1

Production

Choose GPD capacity according to expected daily use, including busy days and colder feed water.

Step 2

Storage

Choose storage that supports peak demand while the RO system replenishes the tank.

Step 3

Pump

Match the RO pump, delivery setup, and optional finishing stages to the selected capacity.

GPD is daily production, not fixture flow. Storage and delivery pumping support showers, laundry, appliances, and simultaneous demand.

Standalone RO system

Choose this configuration when the property already has a compatible atmospheric storage tank, delivery pump, float controls, and related components.

RO system with storage tank kit

The storage tank kit includes the selected RO system, atmospheric storage tank, delivery pump, and float switches for water storage and delivery.

Freight: The large tank configuration can require an additional freight charge.

Suggested applications

RO production Recommended starting application
300 to 400 GPD Low demand homes, cabins, or seasonal properties
500 to 750 GPD Small to average homes with moderate daily use
1,000 to 1,500 GPD Average to large homes with higher daily use
1,800 to 2,500 GPD Large homes, estates, shared properties, or limited light commercial use
4,000 to 7,000 GPD Multifamily and light commercial properties with high daily demand

Use these ranges as starting points. Final selection should account for daily use, peak demand, storage, feed conditions, and site requirements.

System and storage dimensions

RO system dimensions

Production capacity Dimensions, L × W × H
300 GPD 7 × 28 × 33 inches
500 to 1,000 GPD 14 × 20 × 27 inches
1,500 to 1,800 GPD 14 × 20 × 46 inches
2,500 GPD 19 × 23 × 46 inches
4,000 to 7,000 GPD 30 × 38 × 47 inches

For 4,000 to 7,000 GPD systems, some configuration drawings show a 30 × 36 × 59 inch layout. Confirm the final system drawing before purchase.

Storage tank dimensions

Tank size Published dimensions
165 gallons 31 inch diameter × 56 inches high
220 gallons 42 inch diameter × 44 inches high
Large tank option Approximately 67 inch diameter × 44 inches high

The product selector names the large tank option as 500 gallons, while the corresponding system configuration identifies a 550 gallon tank. Confirm the supplied tank size before the order is finalized.

Measure doorways, hallways, stairs, equipment access, and service clearance before selecting a tank.

Optional finishing stages

These optional components are installed downstream of the RO system. A qualified installer should verify compatibility with the selected production capacity and delivery flow.

Remineralizer

Adds a separate post treatment stage. Compatibility depends on flow capacity, connection size, media configuration, and installation position.

View remineralizer configurations

12 GPM UV sterilizer

Adds ultraviolet treatment after filtration and storage. The property’s peak delivery rate must remain within the 12 GPM capacity.

View the 12 GPM UV system

Information to review before ordering

  • Current source water analysis
  • Average daily water use
  • Peak simultaneous demand
  • Hardness, TDS, temperature, and feed pressure
  • Required pretreatment
  • Electrical service and drain access
  • Plumbing connection sizes
  • Equipment and service space
  • Doorway and tank clearance
  • Freight access and unloading

System specifications

Pumps and operating requirements

Brass rotary pump

Standard option for compatible residential systems under typical operating conditions.

Stainless steel rotary pump

Upgrade option when greater corrosion resistance is preferred or operating conditions are more demanding.

1.5 HP horizontal pump

Supplied with the 4,000, 5,000, and 7,000 GPD configurations.

Specification Requirement
Weight 50 to 265 lb
Motor Model specific, up to 1.5 hp
Voltage 110V or 220V
Frequency 50 or 60 Hz
Feed connection 3/8 inch or 1 inch
Product connection 3/8 inch or 1 inch
Waste connection 1/4 inch, 3/8 inch, or 1 inch
Minimum feed pressure 35 psi
NaCl rejection 96% minimum, 98.5% nominal
Minimum feed 1 to 10 GPM, model specific
Maximum hardness 15 grains per gallon
Maximum TDS 2,000 ppm
Operating pressure 150 psi
pH range 3 to 11
Feed water temperature 40°F to 105°F
Recovery 33% to 50%; up to 75% with a system projection
Feed water limits Free chlorine below 0 ppm; iron below 0.05 ppm; manganese below 0.05 ppm; organics below 1 ppm; turbidity below 1 NTU; silica below 1 ppm

Production and rejection ratings are based on 550 ppm feed water at 150 psi, 77°F, pH 7, and 50% recovery. Higher TDS and lower feed water temperatures reduce production. A qualified installer should verify electrical service, connections, feed flow, and final operating requirements for the selected capacity.

Installation instructions and schematics

Parts and components

Use the selected capacity to identify the correct replacement membranes and filter cartridges.

System Membranes / Cartridges SKU
300 GPD (1) 2.5" x 14" Reverse Osmosis Membrane; (1) 2.5 x 20 Sediment Reusable Pleated Filter Cartridge; (1) 2.5 x 20 Coconut-based Carbon Block Filter Cartridge; (1) 2.5 x 20 SMART Filter Cartridge CQE-RC-04111; CQE-RC-04015; CQE-RC-04014; CQE-RC-04016
400 GPD (1) 2.5" x 21" Reverse Osmosis Membrane; (1) 2.5 x 20 Sediment Reusable Pleated Filter Cartridge; (1) 2.5 x 20 Coconut-based Carbon Block Filter Cartridge; (1) 2.5 x 20 SMART Filter Cartridge CQE-RC-04084; CQE-RC-04015; CQE-RC-04014; CQE-RC-04016
500 GPD (2) 2.5" x 21" Reverse Osmosis Membrane; (1) 5" x 10" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 10" SMART Filter Cartridge CQE-RC-04084; CQE-RC-04033; CQE-RC-04027
750 GPD (1) 2.5" x 40" Reverse Osmosis Membrane; (1) 5" x 10" SMART Filter Cartridge; (1) 5" x 10" Sediment Reusable Pleated Filter Cartridge CQE-RC-04109; CQE-RC-04027; CQE-RC-04033
1,000 GPD (3) 2.5" x 21" Reverse Osmosis Membrane; (1) 5" x 10" SMART Filter Cartridge; (1) 5" x 10" Sediment Reusable Pleated Filter Cartridge CQE-RC-04084; CQE-RC-04027; CQE-RC-04033
1,500 GPD (2) 2.5" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge CQE-RC-04109; CQE-RC-04034; CQE-RC-04030
1,800 GPD (1) 4" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge CQE-RC-04086; CQE-RC-04034; CQE-RC-04030
2,500 GPD (3) 2.5" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge CQE-RC-04109; CQE-RC-04034; CQE-RC-04030
4,000 GPD (2) 4" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge; (1) 5" x 20" Coconut-based Carbon Block Filter Cartridge CQE-RC-04086; CQE-RC-04034; CQE-RC-04030; CQE-RC-04036
5,000 GPD (3) 4" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge; (1) 5" x 20" Coconut-based Carbon Block Filter Cartridge CQE-RC-04086; CQE-RC-04034; CQE-RC-04030; CQE-RC-04036
7,000 GPD (4) 4" x 40" Reverse Osmosis Membrane; (1) 5" x 20" Sediment Reusable Pleated Filter Cartridge; (1) 5" x 20" SMART Filter Cartridge; (1) 5" x 20" Coconut-based Carbon Block Filter Cartridge; (1) 5" x 20" GAC Filter Cartridge (Coconut Shell Granular Activated Carbon) CQE-RC-04086; CQE-RC-04034; CQE-RC-04030; CQE-RC-04036; CQE-RC-04106
Pricing & SKU Chart
GPD Configuration Pump SKU Price
300 Standalone Brass Rotary CQE-CO-02023R $2,227.00
300 Standalone Stainless Steel Rotary CQE-CO-02424 $2,337.00
300 165 Gal Tank Kit Brass Rotary CQE-CO-02023K165 $3,967.00
300 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02425 $4,077.00
300 220 Gal Tank Kit Brass Rotary CQE-CO-02023K220 $4,267.00
300 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02426 $4,377.00
300 500 Gal Tank Kit Brass Rotary CQE-CO-02023K550 $4,622.00
300 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02427 $4,732.00
400 Standalone Brass Rotary CQE-CO-02033R $2,527.00
400 Standalone Stainless Steel Rotary CQE-CO-02428 $2,637.00
400 165 Gal Tank Kit Brass Rotary CQE-CO-02033K165 $4,267.00
400 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02429 $4,377.00
400 220 Gal Tank Kit Brass Rotary CQE-CO-02033K220 $4,567.00
400 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02430 $4,677.00
400 500 Gal Tank Kit Brass Rotary CQE-CO-02033K550 $4,922.00
400 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02431 $5,032.00
500 Standalone Brass Rotary CQE-CO-02024R $2,884.00
500 Standalone Stainless Steel Rotary CQE-CO-02432 $2,994.00
500 165 Gal Tank Kit Brass Rotary CQE-CO-02024K165 $4,624.00
500 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02433 $4,734.00
500 220 Gal Tank Kit Brass Rotary CQE-CO-02024K220 $4,924.00
500 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02434 $5,034.00
500 500 Gal Tank Kit Brass Rotary CQE-CO-02024K550 $5,279.00
500 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02435 $5,389.00
750 Standalone Brass Rotary CQE-CO-02031R $2,984.00
750 Standalone Stainless Steel Rotary CQE-CO-02436 $3,094.00
750 165 Gal Tank Kit Brass Rotary CQE-CO-02031K165 $4,724.00
750 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02437 $4,834.00
750 220 Gal Tank Kit Brass Rotary CQE-CO-02031K220 $5,024.00
750 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02438 $5,134.00
750 500 Gal Tank Kit Brass Rotary CQE-CO-02031K550 $5,379.00
750 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02439 $5,489.00
1000 Standalone Brass Rotary CQE-CO-02025R $3,734.00
1000 Standalone Stainless Steel Rotary CQE-CO-02440 $3,899.00
1000 165 Gal Tank Kit Brass Rotary CQE-CO-02025K165 $5,474.00
1000 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02441 $5,639.00
1000 220 Gal Tank Kit Brass Rotary CQE-CO-02025K220 $5,774.00
1000 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02442 $5,939.00
1000 500 Gal Tank Kit Brass Rotary CQE-CO-02025K550 $6,129.00
1000 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02443 $6,294.00
1500 Standalone Brass Rotary CQE-CO-02026R $4,162.00
1500 Standalone Stainless Steel Rotary CQE-CO-02444 $4,327.00
1500 165 Gal Tank Kit Brass Rotary CQE-CO-02026K165 $5,902.00
1500 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02445 $6,067.00
1500 220 Gal Tank Kit Brass Rotary CQE-CO-02026K220 $6,202.00
1500 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02446 $6,367.00
1500 500 Gal Tank Kit Brass Rotary CQE-CO-02026K550 $6,557.00
1500 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02447 $6,722.00
1800 Standalone Brass Rotary CQE-CO-02032R $4,312.00
1800 Standalone Stainless Steel Rotary CQE-CO-02448 $4,477.00
1800 165 Gal Tank Kit Brass Rotary CQE-CO-02032K165 $6,052.00
1800 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02449 $6,217.00
1800 220 Gal Tank Kit Brass Rotary CQE-CO-02032K220 $6,352.00
1800 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02450 $6,517.00
1800 500 Gal Tank Kit Brass Rotary CQE-CO-02032K550 $6,707.00
1800 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02451 $6,872.00
2500 Standalone Brass Rotary CQE-CO-02027R $4,590.00
2500 Standalone Stainless Steel Rotary CQE-CO-02452 $4,755.00
2500 165 Gal Tank Kit Brass Rotary CQE-CO-02027K165 $6,330.00
2500 165 Gal Tank Kit Stainless Steel Rotary CQE-CO-02453 $6,495.00
2500 220 Gal Tank Kit Brass Rotary CQE-CO-02027K220 $6,630.00
2500 220 Gal Tank Kit Stainless Steel Rotary CQE-CO-02454 $6,795.00
2500 500 Gal Tank Kit Brass Rotary CQE-CO-02027K550 $6,985.00
2500 500 Gal Tank Kit Stainless Steel Rotary CQE-CO-02455 $7,150.00
4000 Standalone 1.5 HP Horizontal Pump CQE-CO-02028R $6,409.00
4000 165 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02028K165 $8,149.00
4000 220 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02028K220 $8,449.00
4000 500 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02028K550 $8,804.00
5000 Standalone 1.5 HP Horizontal Pump CQE-CO-02029R $7,051.00
5000 165 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02029K165 $8,791.00
5000 220 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02029K220 $9,091.00
5000 500 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02029K550 $9,446.00
7000 Standalone 1.5 HP Horizontal Pump CQE-CO-02030R $7,693.00
7000 165 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02030K165 $9,433.00
7000 220 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02030K220 $9,733.00
7000 500 Gal Tank Kit 1.5 HP Horizontal Pump CQE-CO-02030K550 $10,088.00
Frequently asked questions
How do I choose the correct capacity?

Use daily consumption, peak demand, storage reserve, source water, feed conditions, operating schedule, and future demand. Bathroom count alone is not final sizing.

Does GPD determine water pressure?

No. GPD describes daily production. Storage, pumping, plumbing, and pressure controls determine delivery.

Do I need a storage tank kit?

Choose a kit when the project does not already have compatible storage, delivery pumping, and level controls.

Is pretreatment required?

It depends on the source water and selected model. Test the water and compare the results with the published feed limits.

Can it be used with well water?

Well water requires a current analysis. Sediment, iron, manganese, hardness, microbiological conditions, and other constituents may require pretreatment.

What should I measure?

Measure equipment space, service clearances, doorways, hallways, drain location, connections, and the tank delivery route.

Crystal Quest performance guarantee information

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