PURE QCRO 4-Stage Drinking Water Purifier

50 GPD or 75 GPD capacity

PURE QCRO | Quick Connect 4 - Stage Reverse Osmosis Drinking Water Purifier - Pure n Natural Systems

PURE QCRO 4-Stage Drinking Water Purifier

Name: PURE QCRO 4-Stage Drinking Water Purifier
Brand: Hydrotech
SKU: 1340302-S50CB
Price: 662.32 USD
Availability: InStock

50 GPD or 75 GPD capacity

$662.32

RO Capacity:

Stage 4 Options:

Faucet:

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About this product

Clean, Great-Tasting Water from an Easy-Change RO System

Get safer, better-tasting drinking water right from your sink. The PURE Under-Counter RO System uses Quick-Connect twist-and-lock filters, so you can change cartridges in seconds—no tools, no mess. Choose 50 or 75 GPD for steady, reliable purified water in kitchens, breakrooms, lounges, and small offices.

Why Buyers Choose PURE RO

Twist-and-lock filters change in seconds
Improves taste by reducing chlorine, odors & dissolved solids
50 or 75 GPD RO membrane options
Includes all filters + dedicated drinking-water faucet
NSF-certified filtration materials

4-Stage Filtration for Cleaner, Fresher Water

Stage 1: Sediment Filter (41407001): Removes dirt, sand, rust, and larger particles to protect downstream filters.

5-micron polypropylene
2,000-gallon capacity
Replace every 6 months

Stage 2: Carbon Block Filter (41407002): Reduces chlorine taste & odor for better-tasting water.

5-micron NSF-certified carbon
2,000-gallon capacity
Replace every 6 months
High-sediment water? Use the optional 50-micron carbon block (41407006) to prevent clogging.

Stage 3: RO Membrane

Choose your capacity:

50 GPD (41407003)
75 GPD (41407008)
Reduces dissolved solids and common contaminants such as sodium, chloride, copper, chromium, and lead.
Thin-film composite membrane
Up to 95% TDS reduction
Replace every 36 months

Stage 4: Final Polishing Filter

Option 1 – 1-Micron Carbon Block (41407009)

Improves final taste
750-gallon capacity
Replace every 6–12 months

Option 2 – pH Booster Cartridge (41407007)

Re-mineralizes water for improved taste
Raises pH
Reduces chlorine, taste & odor
Replace every 6–12 months

Features of the PURE QCRO Drinking Water System

Manifold Assembly - the single manifold ensures reliability. Houses 4 separate filters in a unique, space-saving design.
Automatic Shutoff Valve - Shuts off the system when the reservoir tank is full.
Reservoir Tank - Durable, high-quality, powder-coated steel tank ensures you'll have a plentiful supply of refreshing water.
Optional Designer Faucet - The unit comes with a standard faucet, or upgrade to the designer model.

Specifications of the PURE QCRO Drinking Water System

Feed Water Guidelines
Maximum TDS	2,000 ppm
Hardness	<7 gpg
Iron (Fe)	<0.2 ppm
Manganese (Mn)	<0.05 ppm
Hydrogen Sulfide	0.0 ppm
Turbidity	<1.0 NTU
Feed Water Pressure	40-100 psi
Temperature	40-100F
pH Range	3.0-11.0
Note: Pre-treatment is suggested if conditions exceed parameters. Must be installed on potable water.

Best for

Facility managers in schools, healthcare, offices, and manufacturing plants who need dedicated drinking-water systems (not whole-building treatment).
Spaces where taste, clarity and odor of drinking water matter (cafeterias, break rooms, hospitality suites).
Environments that demand low-maintenance servicing, minimal filter tools and minimal downtime.
Locations with moderate water demands (50-75 gallons per day) rather than full facility feed-through.
Buyers seeking certified contaminant reduction and high-quality under-sink drinking-water solutions.

Specifications

Output capacity	50 GPD or 75 GPD (depending on variant)
Filtration stages	4-Stage: Sediment → Carbon block → RO membrane → Finishing filter
Stage 1 Sediment Filter	5 µm polypropylene, 2,000 gallon capacity, replace ~6 months
Stage 2 Carbon Block Filter	5 µm carbon block, 2,000–gallon capacity, replace ~6 months
Stage 3 RO Membrane	Thin-film composite; 50 or 75 GPD capacity; ~95% TDS reduction
Stage 4 Finishing Filter	Option A: 1 µm carbon block (~750 gallon capacity, replace ~6-12 months) OR Option B: pH booster cartridge (~750 gallon, raise pH, re-mineralize)
Manifold dimensions	Manifold - 15.8" (W) x 4.7" (D) x 13.1" (H) Tank Size - 13.7" (D) x 13.7" (H) Each Filter Cartridge - 2.96" (D) x 12.17" (H)
Feed-water guidelines	Max TDS 2,000 ppm; Hardness <7 gpg; Iron <0.2 ppm; Manganese <0.05 ppm; Turbidity <1.0 NTU; Pressure 40-100 psi; Temp 40-100 °F; pH 3.0-11.0

Certifications

System certified by IAPMO R&T and/or WQA under ANSI/NSF 58 for reduction of lead, arsenic V, barium, cadmium, chromium III/VI, copper, fluoride, radium 226/228, selenium, TDS, turbidity.
Warranty: 1-Year Guarantee (repair or replace)

What's in the box

Under-counter manifold assembly with four filter ports (pre-assembled)
Storage reservoir tank (as per variant)
All four initial filter cartridges (Sediment, Carbon Block, RO Membrane, Finishing Filter)
Choice of faucet: Standard or Designer (depending on selection)
Quick-connect tubing and fittings for installation
Installation manual and parts list (including labeled filter cartridges)
Mounting hardware for manifold assembly
Warranty & registration card

Installation tips

Locate a suitable under-sink space with access to cold potable water supply, drain line and faucet hole or add-on faucet mount.
Verify feed water pressure is within 40-100 psi and pre-treatment is in place if hardness, iron or turbidity exceed guidelines.
Shut off main water supply, relieve pressure and install the adapter valve on the cold-water line.
Mount the manifold assembly on a cabinet wall with access to cartridges.
Connect tubing: feed water → manifold inlet; reject/drain line per manufacturer instructions; clean-water outlet to dedicated faucet.
Flush the system: Fill the tank, then discard the first full tank of water (to purge the filters and membrane).
Label filter change intervals: Sediment/Carbon every ~6 months, Finishing filter every 6-12 months, RO Membrane every ~36 months (depending on water quality).
Maintain a record of installation date, model/serial number, and water quality tests if required by facility standards.

Frequently asked questions

What is the difference between the 50 GPD and 75 GPD models?
The main difference is the RO membrane capacity—50 GPD yields approx. 50 gallons per day under optimal conditions; 75 GPD is higher throughput for larger demand. Both share the same filtration stages and quick-connect design.

How often do I need to change filters?

Sediment filter (Stage 1): ~6 months
Carbon block filter (Stage 2): ~6 months
RO membrane (Stage 3): ~36 months (depending on feed-water quality)
Finishing filter (Stage 4): ~6-12 months (or sooner if taste/flow declines)

Is this system certified to remove lead, PFAS or other heavy metals?
Yes. The system is certified under ANSI/NSF 58 (or equivalent) for reduction of lead, arsenic V, barium, cadmium, chromium III/VI, copper, selenium, radium and TDS. Some variations (via Aqua Flo QCRO family) also list PFOS/PFOA reduction.

Will the system work if my water is very hard or has high iron content?
The system’s feed-water guidelines specify hardness less than ~7 gpg (or 10 gpg in broader spec sheets), iron <0.2 ppm, manganese <0.05 ppm, turbidity <1.0 NTU. If your water exceeds those values, pre-treatment (softener, sediment filter, iron removal) is recommended. Failure to pre-treat may shorten filter/membrane life.

Can this system serve multiple faucets or large-scale use?
This system is designed for a single dedicated faucet serving drinking/food-service points under sink. For multiple faucets or full-facility use, a larger commercial system would be more appropriate.

What happens if the filter or membrane is not changed on schedule?
Overdue cartridges may lead to reduced flow, higher rejection of contaminants may diminish, and the RO membrane may be exposed to chlorine or sediment damage. This can reduce system performance and shorten membrane lifespan.

Do I need electrical power for this system?
No. This under-sink RO system operates via water pressure and uses a storage tank; no separate power supply is required (unless optional pump variant is used).

How do I dispose of the spent cartridges?
Follow local regulations for disposal of water-treatment cartridges. Some components may be recycled depending on local programs