Crystal Quest 4000–5000 GPD Reverse Osmosis Water System – Mid-Flow

Overview

The Crystal Quest Mid-Flow Reverse Osmosis System (4000–5000 GPD) is designed for high-capacity applications requiring continuous access to high-purity water in pharmaceutical manufacturing, healthcare environments, and laboratory operations.

Built for demanding workflows, this system delivers consistent performance and scalability while maintaining operational efficiency. Its robust construction and high-output design make it ideal for environments with variable or intensive water usage.

Pump Configuration 

This system is equipped with a:

1.5 HP Horizontal Pump → high-performance pump designed for large-scale, continuous operation and high flow demand

This configuration ensures reliable operation in high-capacity environments.

System Configuration Options

These systems can be configured based on water demand, storage requirements, and available space. Multiple storage tank options are available:

Bladder (Pressure) Tank Configuration (20–40 GAL)

A compact, pressurized storage solution ideal for moderate demand applications.

Best suited for
Systems up to ~1000 GPD
Intermittent usage
Space-restricted installations

Atmospheric Storage Tank Options (with Pump)

Atmospheric tanks store water at ambient pressure and require a delivery pump (included in tank kits). Multiple tank sizes are available depending on system size and demand:

165 Gallon Tank  
Compact option  
Suitable for lower demand or space-limited setups  
Can be used with higher GPD systems but offers limited storage capacity  

220 Gallon Tank (Recommended for 500–2500 GPD systems)  
Balanced storage capacity  
Ideal for most commercial and mid-flow applications  
Provides stable performance under moderate to high demand  

500 Gallon Tank (Recommended for 4000–7000 GPD systems)  
High-capacity storage solution  
Designed for continuous or high-demand applications  
Ensures consistent supply during peak usage  

Key advantages of atmospheric systems
Large storage capacity  
Consistent pressure with pump assistance  
Suitable for high-demand and multi-user environments  

Important
Atmospheric tanks include a dedicated delivery pump.  
Bladder and atmospheric configurations are not used together.
Tank selection should be based on demand, not just system size.

Standalone System
Suitable for direct-use applications or integration into existing pressurized systems without additional storage.

Dimensions (L x W x H)

31” x 38” x 56”

Standard Features

Durable Construction: Aluminum white powder-coated frame, corrosion-resistant and lightweight

Membrane Housing: Stainless steel housing with TFC membrane for high impurity rejection and flow performance

High-Performance Pump: 1.5 HP horizontal pump designed for continuous operation

High-Efficiency Motor: Reliable and energy-efficient performance

Concentrate Valve (316 Stainless Steel): Controls permeate and concentrate water flow

Flow Meter: Displays permeate and concentrate flow rates

Pressure Gauges:

- 0–100 psi pre-filter pressure gauge for cartridge monitoring

- 0–300 psi pump pressure gauge (typical operation: 120–200 psi)

Low-Pressure Switch: Automatically shuts off the system to prevent pump damage

High-Pressure Tank Switch: Stops system operation at preset tank pressure levels

Feed Solenoid Valve (1”): Automatically shuts off feed water supply

Quick-Connect Fittings: Push/pull fittings with locking safety clips

Key Benefits

Designed for high-capacity applications

Fully pre-plumbed, wired, and assembled

Scalable and configurable system

Reliable performance under continuous use

Easy maintenance and servicing

Low operating and maintenance costs

Factory tested and quality assured

CE compliant

Made in the USA

1-Year limited warranty

Replacement Cartridges & Filters

To maintain optimal performance and water purity, the system requires periodic replacement of filters and membranes. Below are the compatible cartridge configurations for high-capacity systems:

4000 GPD

4-5/8” x 20” Pleated Cellulose Sediment Cartridge,
CQE-RC-04034

4-5/8” x 20” SMART Filter Cartridge,
CQE-RC-04030

4-5/8” x 20” Coconut Based 5-Micron Carbon Block Filter Cartridge,
CQE-RC-04036

(2) 4” x 40” Freshwater Reverse Osmosis Membranes,
CQE-RC-04086

5000 GPD

4-5/8” x 20” Pleated Cellulose Sediment Cartridge,
CQE-RC-04034

4-5/8” x 20” SMART Filter Cartridge,
CQE-RC-04030

4-5/8” x 20” Coconut Based 5-Micron Carbon Block Filter Cartridge,
CQE-RC-04036

(2) 4” x 40” Freshwater Reverse Osmosis Membranes,
CQE-RC-04086

Using the correct replacement cartridges ensures system efficiency, longevity, and consistent water quality in high-demand applications.

Important: This is a custom-configured water filtration system. Due to manufacturer restrictions, returns are only accepted on unused items in original packaging. Installed or used systems are not eligible for return. Please confirm compatibility with your application before purchase.