3-Stage Whole-House Water Purification

Installed at Your Key West Home

THIS IS WHAT IT LOOKS LIKE ON YOUR WALL (Key West Home)

Three blue housings on a wall-mounted manifold, plumbed into your main line where water enters the home. A compact, tidy install—ideal for Key West homes where space matters, not a tank taking over the garage.

The 3-stage whole-house purification system installed on an exterior wall in Key West: three blue filter housings on a wall-mounted manifold, plumbed into the incoming main line. — The 3-stage system installed at a Key West customer's home.

Mounted, plumbed and pressure-tested by our own Key West crew
Three full-size blue housings on one manifold
Usually finished in a single visit

Three Housings—Not One Cartridge

EACH MEDIUM GETS A FULL-SIZE HOUSING

Single-cartridge systems pack every medium into one shell. This one gives each of the three media its own housing, plumbed in series on a wall-mounted manifold—more media volume, more contact time with the water, and longer intervals between changes. Each cartridge is replaced individually, so you only change what is spent.

1 MPP

Polypropylene Sediment Pre-Filter

Model 2045 PP

Takes the physical load first, so carbon behind it isn’t wasted on dirt—great for Key West lines.

2 GAC

Granular Activated Carbon

Model 2045 GAC

The chemical workhorse—built for volume, surface area, and capacity to handle Key West’s everyday water challenges.

3 CTO

Compressed Activated Carbon Block

Model 2045 CTO

A dense final pass that leaves no shortcuts for anything still in the water—especially after storm season in the Florida Keys.

Three full-size housings instead of one shared shell.
More contact time between the water and the media.
Individually replaceable - change only the spent cartridge.
Longer intervals between filter changes in your Florida Keys home.
A far longer chemical reduction list than a single cartridge.
Helps protect your plumbing from the main line onward—important in Key West’s salty air.

Why Key West Homeowners Choose Us

BUILT WELL, BACKED PROPERLY

Commercial-grade filtration, installed by a Florida plumbing company that understands coastal conditions in the Keys—and stands behind the work.

Professional Grade

Commercial-grade filtration for superior performance—built for life in the Florida Keys.

Easy Maintenance

Designed for simple upkeep in Key West’s humid, coastal climate.

Satisfaction Guaranteed

We stand behind our products and quality of service here in Key West.

Trusted Across the Florida Keys

Join the homeowners across South Florida who choose Mr. Pure Water—including right here in Key West.

Inside the Housings

ALL THREE FILTERS, INSIDE THE BLUE HOUSINGS

Three full-size housings on one manifold, each holding a different medium—ideal for Key West homes. Here’s what’s inside each one, in order.

X-ray view of the first blue housing, showing the depth-wound polypropylene sediment cartridge inside.

MPP Sediment Pre-Filter

Model 2045 PP

Inside: a depth-wound polypropylene cartridge. Water moves from the outer windings toward the core, trapping rust, sand, silt, and sediment before it reaches the carbon—helpful in storm season.

X-ray view of the second blue housing, showing loose granular activated carbon inside.

GAC Granular Activated Carbon

Model 2045 GAC

Inside: a full housing of loose carbon granules. The gaps between them are the point—water threads through the bed slowly, giving chlorine, VOCs and solvents time to adsorb.

X-ray view of the third blue housing, showing the compressed carbon block and its hollow centre channel.

CTO Carbon Block

Model 2045 CTO

Inside: carbon compressed into a solid wall around a hollow core. With no loose path through it, the last of the chlorine, fine particles, and residual organics have nowhere to slip past—great peace of mind for Key West.

Untreated water in MPP GAC CTO Clean water to every tap in Key West

The Chemical Story

BUILT FOR KEY WEST IMPURITIES & CHEMICAL CONCERNS

Most whole-home filters are sold on taste and scale. Two full housings of activated carbon let this one go after a much longer, more technical list—the contaminants people in Monroe County actually get their water tested for.

Chlorine & Byproducts

Stages 2 & 3

Chlorine
THMs / Trihalomethanes
Disinfection Byproducts
Chlorine Taste & Odor

Agricultural Chemicals

Stage 2 - GAC

Pesticides
Herbicides
Lawn-Care Runoff
Organic Chemicals

Industrial & Volatile

Stages 2 & 3

Industrial Solvents
VOCs
Residual Organics
Other Dissolved Contaminants

Physical & Particulate

Stages 1 & 3

Rust, Dirt, Sand & Silt
Sediment & Suspended Solids
Pipe Scale Fragments
Microparticles & Fine Particulate

Stage 2 - Loose Granular Carbon (GAC)

Volume and capacity

Loose granules pack enormous surface area into the housing.
Water moves through quickly, so flow stays high.
High chemical capacity before the media is spent.
But water can channel through gaps between the granules.

Stage 3 - Compressed Carbon Block

No shortcuts

Carbon compressed into a solid block with no gaps to channel through.
The tight structure also catches fine particulate matter.
Everything that survived stage 2 gets a second, denser pass.
Slower by design—which is exactly why it goes last.

The order is the design

Sediment first, so the expensive carbon isn’t wasted on dirt. Loose granular carbon second, for volume and chemical capacity. Dense carbon block last, for a tight final pass. In that sequence, you get the strengths of both carbon types—ideal for Key West’s coastal conditions and occasional storm-season water quality swings.

3-STAGE WHOLE-HOUSE

WATER PURIFICATION

MPP · GAC · CTO - THREE HOUSINGS IN SERIES

THIS IS WHAT IT LOOKS LIKE ON YOUR WALL (Key West Home)

EACH MEDIUM GETS A FULL-SIZE HOUSING

Polypropylene Sediment Pre-Filter

Granular Activated Carbon

Compressed Activated Carbon Block