4 Stage Quick Twist Whole House Water Filtration System. Metpure Versatile Customizable Reverse Osmosis RO Water Filtration System. Complete System With Hardware, Filters, Storage Tank, and Faucet. (Select Your System Type and Faucet)

Metpure Versatile Reverse Osmosis Water Filtration System | 4 Stage Quick Twist Filters RO System with Faucet | Under Sink Water Filter for Clean Drinking Water & Simple Set Up – 50 GPD, 100GPD or 50GPD Alkaline System, Complete installation kit and accessories. 

HIGH QUALITY & EFFECTIVE:
All system variants—ROLB, RAGS, and ROLB- —deliver premium water purification through a 4-stage filtration process, removing up to 99% of contaminants like lead, mercury, chlorine, and more for clean, safe drinking water. Produce water at 50 GPD or 100 GPD (depending on system selection). For alkaline water RO system selection, enjoy pH alkaline water at a range of 8.5-9.5 at the convenience of your own home. 

COMPACT & SPACE-SAVING DESIGN:
Designed to fit seamlessly under your sink, these systems feature a sleek, mountable build, a 3.2-gallon storage tank, and a 100% lead-free faucet, combining efficiency with convenience.

CHOOSE YOUR SYSTEM:

• (50 GPD) ROGB SYSTEM: Combines sediment (R), extruded carbon + PP composite (O), 50 GPD RO membrane (G), and granular activated carbon post-filter (B) for balanced filtration and great-tasting water. Rejects TDS up to 99%. System purifies water to pristine, crisp, and refreshing taste at a rate of 50 gallons per day.

• (100GPD) ROLB-SYSTEM: Combines sediment (R), extruded carbon + PP composite (O), 100 GPD RO membrane (G), and granular activated carbon post-filter (B) for balanced filtration and great-tasting water. Rejects TDS up to 99%. This System is made for fast recovery, made specifically for families with larger demands at once. Cuts the recovery wait time by 1/2 of that ROGB system. This RO water filtration unit can purify water to pristine, crisp, and refreshing taste at a rate of 100 gallons per day.

• (50GPD) RAGS-SYSTEM: Features sediment (R), extruded carbon (A), 50 GPD RO membrane (G), and Element antioxidant alkaline filter (s) for balanced filtration and great-tasting water. Rejects TDS up to 99%. System purifies water to pristine, crisp, and refreshing taste at a rate of 50 gallons per day, and is designed to add minerals and turn your drinking water into alkaline water with a pH of 8.5-9.5.

HASSLE-FREE MAINTENANCE:
Enjoy easy filter replacements with quick-twist filters and a Cartridge Attachment Manifold (CAM) design for straightforward upkeep—no mess, no fuss.

WARRANTY & SUPPORT:
Backed by a 2-year warranty (1 year + 1 year upon registration) and supported by a responsive, U.S.-based customer service team.

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WHAT’S INCLUDED?

• Complete installation kit: Drain Saddle, EZ RO Adapter, Faucet Adapter, Tank Ball Valve, Mounting Screws
• Tubing (color-coded for easy setup)
• NSF certified RO Faucet
• 3.2-Gallon Storage Tank
• Filters specific to the system variant (R, O, L/B or G/S)
• System Body and Installation Manual

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WATER FILTRATION SYSTEM AND FILTER DETAILS

MV4-ROGB System

R-Sediment Filter
Removes large sediments such as sand, silt, dirt, and rust.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range. 6-12 months under normal usage.

O-Extruded Carbon Block Composite Filter
Removes chlorine, odor, organic compounds, and secondary polypropylene sediment and removes residual carbon filter.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range while maintaining chlorine reduction level ≥ 90%. 6-12 months under normal usage.

G-50 GPD RO membrane
For drinking water treatment units. Rejects up to 99% TDS under laboratory conditions.
Lifespan
Greatly depends on usage and water quality. Use TDS of membrane drinking water output and divide it by feed water TDS. If ≥ 15%, replace membrane. Under normal usage and water quality, change between 2-5 years.

B-Granular Activated Carbon (GAC) Post-filter
Removes chlorine, odor, organic compounds. Great as a single POU or before a fridge, coolers, water fountains, coffee makers, and other low flow applications.
Lifespan
≥1900 Gal (7200 L). Tested with municipal water @ working flowrate and pressure range while maintaining chlorine reduction level ≥ 90%. Under normal usage and water quality, change between 6-12 months without RO membrane. 12-24 months with RO membrane.

MV4-ROLB System 

R-Sediment Filter
Removes large sediments such as sand, silt, dirt, and rust.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range. 6-12 months under normal usage.

O-Extruded Carbon Block Composite Filter
Removes chlorine, odor, organic chemicals, and secondary polypropylene sediment and removes residual carbon filter.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range while maintaining chlorine reduction level ≥ 90%. 6-12 months under normal usage.

L-100 GPD RO membrane
100 gallons per day RO membrane. For drinking water treatment units. Rejects up to 99% TDS under laboratory conditions.
Lifespan
Greatly depends on usage and water quality. Use TDS of
membrane drinking water output and divide it by feed water TDS. If ≥ 15%, replace membrane. Under normal usage and water quality, change between 2-5 years.

B-Granular Activated Carbon (GAC) Post-filter
Removes chlorine, odor, organic compounds. Great as a single POU or before a fridge, coolers, water fountains, coffee makers, and other low flow applications.
Lifespan
≥1900 Gal (7200 L). Tested with municipal water @ working flowrate and pressure range while maintaining chlorine reduction level ≥ 90%. Under normal usage and water quality, change between 6-12 months without RO membrane. 12-24 months with RO membrane.

MV4-RAGS System 

R-Sediment Filter
Removes large sediments such as sand, silt, dirt, and rust.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range while maintain chlorine reduction level ≥ 90%. 6-12 months under normal usage.

A-Extruded Carbon Block Filter
Removes chlorine, odor, organic chemicals. Use as a pre-filter in a RO system.
Lifespan
≥ 950 Gal (3600 L). Tested with municipal water @ working flowrate and pressure range while maintaining chlorine reduction level ≥ 90%. 6-12 months under normal usage.

G-50 GPD RO membrane
For drinking water treatment units. Rejects up to 99% TDS under controlled conditions.
Lifespan
Greatly depends on usage and water quality. Use TDS of membrane drinking water output and divide it by feed water TDS. If ≥ 15%, replace membrane. Under normal usage and water quality, change between 2-5 years.

S-Antioxidant Alkaline Filter
Produce supercharged ionized, antioxidant, alkaline water with electrolytes.
Alkalinity -8.5ph~9.5ph
Oxidation Reduction Potential-150mV~ – 300mv
Lifespan
12 months or 1500 gallons

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Simple design, superior capability

Metpure Versatile quick-twist style water filtration system was designed from the ground up with 3 goals in mind: Superior water purification capability, low-profile footprint, and simple to install and maintain. Needless to say, we have achieved all 3. The first thing you will notice about the system is its compact and lightweight profile, which will significantly save you valuable space in your cabinet. Next, the quick-twist style filter cartridges will put those traditional bulky filter housing systems to shame because these quick-twist filters are easy and fast to change without fuss, stress, or mess. Lastly, Metpure Versatile system assures to produce superior high-quality purified water for your entire family day in and day out.