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IPW Industries Inc (ISO-4PK) Reverse Osmosis RO 4 Filter Replacement Set

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IPW Industries Inc (ISO-4PK) Reverse Osmosis RO 4 Filter Replacement Set

This complete 4-piece replacement filter set restores full filtration performance to standard residential reverse osmosis systems including ISO-RO5, ISO-RO4DI, W-525, and W-425 models. Each kit includes one 5-micron sediment prefilter, one granular activated carbon (GAC) prefilter, one carbon block prefilter (5 or 10 micron), and one inline post-carbon filter for final polishing.
SPECIFICATIONS

Complete Annual Service Kit

Filter Dimensions
10" × 2.5"
Standard housing size
Sediment Stage
5 Micron
Removes dirt, rust, silt
GAC Prefilter
Granular Carbon
Chlorine & taste removal
Carbon Block
5 or 10 Micron
Fine sediment & chlorine
Post Filter
Inline GAC
Final taste & odor polish
Replacement Cycle
Annual
12 months typical service
TECHNICAL DETAILS

Filter Set Configuration

Package Contents 4-piece complete prefilter and post-filter set
Filter Cartridge Size 10 inch length × 2.5 inch diameter (standard RO housing)
Sediment Filter 5 micron spun polypropylene prefilter (Stage 1)
GAC Prefilter Granular activated carbon cartridge (Stage 2)
Carbon Block Filter 5 or 10 micron extruded carbon block (Stage 3)
Post Inline Filter Granular activated carbon inline cartridge with 1/4" quick-connect fittings
Service Life 12 months or per manufacturer recommendation based on water quality
COMPATIBILITY & APPLICATIONS

System Compatibility

This filter set is engineered for IPW Industries ISO-RO5, ISO-RO4DI, W-525, W-425, and most standard residential reverse osmosis systems using 10" × 2.5" prefilter housings and inline post-filters. The three prefilter cartridges install in standard 10-inch filter housings with 1/4" NPT or quick-connect ports. The inline post-filter connects between the RO storage tank and faucet using 1/4" quick-connect fittings. Note that 1/4" NPT threading measures approximately 0.540 inches outer diameter when measured with calipers or a ruler, not 0.25 inches. This is a complete annual service kit designed to restore original filtration capacity and protect the reverse osmosis membrane from fouling, chlorine damage, and premature failure. Ideal for residential point-of-use RO systems treating municipally chlorinated water supplies.

💧 Replace all prefilters and the post-filter together annually to maintain consistent water quality and extend the life of your RO membrane. Staggered replacement schedules reduce protection and can allow chlorine to reach the membrane, causing irreversible damage.
This complete 4-piece replacement filter set restores full filtration performance to standard residential reverse osmosis systems including ISO-RO5, ISO-RO4DI, W-525, and W-425 models. Each kit includes one 5-micron sediment prefilter, one granular activated carbon (GAC) prefilter, one carbon block prefilter (5 or 10 micron), and one inline post-carbon filter for final polishing.
SPECIFICATIONS

Complete Annual Service Kit

Filter Dimensions
10" × 2.5"
Standard housing size
Sediment Stage
5 Micron
Removes dirt, rust, silt
GAC Prefilter
Granular Carbon
Chlorine & taste removal
Carbon Block
5 or 10 Micron
Fine sediment & chlorine
Post Filter
Inline GAC
Final taste & odor polish
Replacement Cycle
Annual
12 months typical service
TECHNICAL DETAILS

Filter Set Configuration

Package Contents 4-piece complete prefilter and post-filter set
Filter Cartridge Size 10 inch length × 2.5 inch diameter (standard RO housing)
Sediment Filter 5 micron spun polypropylene prefilter (Stage 1)
GAC Prefilter Granular activated carbon cartridge (Stage 2)
Carbon Block Filter 5 or 10 micron extruded carbon block (Stage 3)
Post Inline Filter Granular activated carbon inline cartridge with 1/4" quick-connect fittings
Service Life 12 months or per manufacturer recommendation based on water quality
COMPATIBILITY & APPLICATIONS

System Compatibility

This filter set is engineered for IPW Industries ISO-RO5, ISO-RO4DI, W-525, W-425, and most standard residential reverse osmosis systems using 10" × 2.5" prefilter housings and inline post-filters. The three prefilter cartridges install in standard 10-inch filter housings with 1/4" NPT or quick-connect ports. The inline post-filter connects between the RO storage tank and faucet using 1/4" quick-connect fittings. Note that 1/4" NPT threading measures approximately 0.540 inches outer diameter when measured with calipers or a ruler, not 0.25 inches. This is a complete annual service kit designed to restore original filtration capacity and protect the reverse osmosis membrane from fouling, chlorine damage, and premature failure. Ideal for residential point-of-use RO systems treating municipally chlorinated water supplies.

💧 Replace all prefilters and the post-filter together annually to maintain consistent water quality and extend the life of your RO membrane. Staggered replacement schedules reduce protection and can allow chlorine to reach the membrane, causing irreversible damage.
Select Inline Fitting Connection
From $7.00

Original: $19.99

-65%
IPW Industries Inc (ISO-4PK) Reverse Osmosis RO 4 Filter Replacement Set—

$19.99

$7.00

Description

This complete 4-piece replacement filter set restores full filtration performance to standard residential reverse osmosis systems including ISO-RO5, ISO-RO4DI, W-525, and W-425 models. Each kit includes one 5-micron sediment prefilter, one granular activated carbon (GAC) prefilter, one carbon block prefilter (5 or 10 micron), and one inline post-carbon filter for final polishing.
SPECIFICATIONS

Complete Annual Service Kit

Filter Dimensions
10" × 2.5"
Standard housing size
Sediment Stage
5 Micron
Removes dirt, rust, silt
GAC Prefilter
Granular Carbon
Chlorine & taste removal
Carbon Block
5 or 10 Micron
Fine sediment & chlorine
Post Filter
Inline GAC
Final taste & odor polish
Replacement Cycle
Annual
12 months typical service
TECHNICAL DETAILS

Filter Set Configuration

Package Contents 4-piece complete prefilter and post-filter set
Filter Cartridge Size 10 inch length × 2.5 inch diameter (standard RO housing)
Sediment Filter 5 micron spun polypropylene prefilter (Stage 1)
GAC Prefilter Granular activated carbon cartridge (Stage 2)
Carbon Block Filter 5 or 10 micron extruded carbon block (Stage 3)
Post Inline Filter Granular activated carbon inline cartridge with 1/4" quick-connect fittings
Service Life 12 months or per manufacturer recommendation based on water quality
COMPATIBILITY & APPLICATIONS

System Compatibility

This filter set is engineered for IPW Industries ISO-RO5, ISO-RO4DI, W-525, W-425, and most standard residential reverse osmosis systems using 10" × 2.5" prefilter housings and inline post-filters. The three prefilter cartridges install in standard 10-inch filter housings with 1/4" NPT or quick-connect ports. The inline post-filter connects between the RO storage tank and faucet using 1/4" quick-connect fittings. Note that 1/4" NPT threading measures approximately 0.540 inches outer diameter when measured with calipers or a ruler, not 0.25 inches. This is a complete annual service kit designed to restore original filtration capacity and protect the reverse osmosis membrane from fouling, chlorine damage, and premature failure. Ideal for residential point-of-use RO systems treating municipally chlorinated water supplies.

💧 Replace all prefilters and the post-filter together annually to maintain consistent water quality and extend the life of your RO membrane. Staggered replacement schedules reduce protection and can allow chlorine to reach the membrane, causing irreversible damage.
IPW Industries Inc (ISO-4PK) Reverse Osmosis RO 4 Filter Replacement Set | Isopure Water