PureT (E3RO550-RETRO) "EZ SLIM" 5 Stage Reverse Osmosis System 50 GPD RETRO FIT KIT
E3RO550-RETRO "EZ SLIM" 5-Stage Reverse Osmosis Retrofit Kit
The PureT E3RO550-RETRO is a retrofit kit for upgrading existing reverse osmosis installations with a modern 5-stage filtration system. This kit includes the complete filter housing assembly and all replacement cartridges, but excludes the storage tank, dedicated faucet, and installation hardware. Ideal for replacing aging systems while reusing functional components. Dimensions: 18"H × 13.5"W × 4.75"D, weighing just 6.5 lbs for easy handling during installation.
5-Stage Reverse Osmosis Process
Stage 1: Sediment Depth
E3IL-12WS5GR polypropylene melt-blown filter at 5 micron removes dirt, rust, silt, sand, and particulates. Protects downstream filters and membrane from premature fouling.
5,000 galStage 2: Granulated Carbon
E3IL-12WCLBL coconut shell GAC (12×40 mesh) reduces chlorine, taste, odor, and volatile organic compounds including pesticides and insecticides through high surface area adsorption.
5,000 galStage 3: Carbon Block
E3IL-12WCBNVY coconut shell carbon block at 5 micron provides secondary chlorine and VOC reduction with no channeling or carbon fines release.
2,500 galStage 4: RO Membrane
PT-1812-50 or TW30-1812-50 thin-film composite membrane removes up to 98% of TDS, heavy metals (lead, cadmium, chromium), fluoride, nitrates, and E.coli bacteria.
1–2 yearsStage 5: Inline Polish
IL-10W-C-EZ granular coconut carbon (12×40 mesh) removes any residual taste or odor from stored water. Built-in quick-connect fittings with pre/post filter pads.
2,500 galWhat Makes This Retrofit Kit Different
Tool-Free Filter Changes
EZ Twist-On connection design allows filter replacement in 3 seconds without wrenches or special tools. Color-coded cartridges prevent installation errors.
Ultra-Slim Profile
At just 4.75 inches deep, the E3RO550-RETRO fits in tight under-sink spaces where standard RO systems cannot. Ideal for retrofitting compact cabinets.
Recyclable Cartridges
Filter housings and cartridges use recyclable polypropylene and coconut-based carbon materials. Lighter weight reduces shipping impact and simplifies handling.
50 GPD Production Rate
Produces up to 50 gallons per day of purified water for household drinking, cooking, coffee, and beverage preparation needs.
Wide Operating Range
Functions in water temperatures from 40–85°F and pressures from 40–100 psi. Handles pH levels from 4–11 and TDS up to 2,000 ppm.
Commercial-Ready Design
NSF-certified materials suitable for residential and light commercial applications including offices, fitness centers, juice bars, and coffee shops.
Retrofit Installation Requirements
The PureT E3RO550-RETRO kit is designed to replace the filtration assembly in existing reverse osmosis systems while reusing the original storage tank, dedicated faucet, drain saddle, and feed valve. Compatible with standard 1/4-inch quick-connect tubing found on most residential RO systems. Requires a potable water supply with maximum 2,000 ppm TDS, minimum 40 psi inlet pressure, and temperature between 40–85°F. Not suitable as a standalone system without tank and faucet components. Replacement filters available individually: E3IL-12WS5GR (sediment), E3IL-12WCLBL (GAC), E3IL-12WCBNVY (carbon block), PT-1812-50 or TW30-1812-50 (membrane), IL-10W-C-EZ (polish). Ideal for upgrading systems from PureT, APEC, iSpring, Home Master, or other brands using standard inline filter dimensions.
All PureT filtration components use NSF-certified materials and are backed by the manufacturer's quality guarantee for residential and commercial water treatment applications.
E3RO550-RETRO "EZ SLIM" 5-Stage Reverse Osmosis Retrofit Kit
The PureT E3RO550-RETRO is a retrofit kit for upgrading existing reverse osmosis installations with a modern 5-stage filtration system. This kit includes the complete filter housing assembly and all replacement cartridges, but excludes the storage tank, dedicated faucet, and installation hardware. Ideal for replacing aging systems while reusing functional components. Dimensions: 18"H × 13.5"W × 4.75"D, weighing just 6.5 lbs for easy handling during installation.
5-Stage Reverse Osmosis Process
Stage 1: Sediment Depth
E3IL-12WS5GR polypropylene melt-blown filter at 5 micron removes dirt, rust, silt, sand, and particulates. Protects downstream filters and membrane from premature fouling.
5,000 galStage 2: Granulated Carbon
E3IL-12WCLBL coconut shell GAC (12×40 mesh) reduces chlorine, taste, odor, and volatile organic compounds including pesticides and insecticides through high surface area adsorption.
5,000 galStage 3: Carbon Block
E3IL-12WCBNVY coconut shell carbon block at 5 micron provides secondary chlorine and VOC reduction with no channeling or carbon fines release.
2,500 galStage 4: RO Membrane
PT-1812-50 or TW30-1812-50 thin-film composite membrane removes up to 98% of TDS, heavy metals (lead, cadmium, chromium), fluoride, nitrates, and E.coli bacteria.
1–2 yearsStage 5: Inline Polish
IL-10W-C-EZ granular coconut carbon (12×40 mesh) removes any residual taste or odor from stored water. Built-in quick-connect fittings with pre/post filter pads.
2,500 galWhat Makes This Retrofit Kit Different
Tool-Free Filter Changes
EZ Twist-On connection design allows filter replacement in 3 seconds without wrenches or special tools. Color-coded cartridges prevent installation errors.
Ultra-Slim Profile
At just 4.75 inches deep, the E3RO550-RETRO fits in tight under-sink spaces where standard RO systems cannot. Ideal for retrofitting compact cabinets.
Recyclable Cartridges
Filter housings and cartridges use recyclable polypropylene and coconut-based carbon materials. Lighter weight reduces shipping impact and simplifies handling.
50 GPD Production Rate
Produces up to 50 gallons per day of purified water for household drinking, cooking, coffee, and beverage preparation needs.
Wide Operating Range
Functions in water temperatures from 40–85°F and pressures from 40–100 psi. Handles pH levels from 4–11 and TDS up to 2,000 ppm.
Commercial-Ready Design
NSF-certified materials suitable for residential and light commercial applications including offices, fitness centers, juice bars, and coffee shops.
Retrofit Installation Requirements
The PureT E3RO550-RETRO kit is designed to replace the filtration assembly in existing reverse osmosis systems while reusing the original storage tank, dedicated faucet, drain saddle, and feed valve. Compatible with standard 1/4-inch quick-connect tubing found on most residential RO systems. Requires a potable water supply with maximum 2,000 ppm TDS, minimum 40 psi inlet pressure, and temperature between 40–85°F. Not suitable as a standalone system without tank and faucet components. Replacement filters available individually: E3IL-12WS5GR (sediment), E3IL-12WCLBL (GAC), E3IL-12WCBNVY (carbon block), PT-1812-50 or TW30-1812-50 (membrane), IL-10W-C-EZ (polish). Ideal for upgrading systems from PureT, APEC, iSpring, Home Master, or other brands using standard inline filter dimensions.
All PureT filtration components use NSF-certified materials and are backed by the manufacturer's quality guarantee for residential and commercial water treatment applications.
Description
E3RO550-RETRO "EZ SLIM" 5-Stage Reverse Osmosis Retrofit Kit
The PureT E3RO550-RETRO is a retrofit kit for upgrading existing reverse osmosis installations with a modern 5-stage filtration system. This kit includes the complete filter housing assembly and all replacement cartridges, but excludes the storage tank, dedicated faucet, and installation hardware. Ideal for replacing aging systems while reusing functional components. Dimensions: 18"H × 13.5"W × 4.75"D, weighing just 6.5 lbs for easy handling during installation.
5-Stage Reverse Osmosis Process
Stage 1: Sediment Depth
E3IL-12WS5GR polypropylene melt-blown filter at 5 micron removes dirt, rust, silt, sand, and particulates. Protects downstream filters and membrane from premature fouling.
5,000 galStage 2: Granulated Carbon
E3IL-12WCLBL coconut shell GAC (12×40 mesh) reduces chlorine, taste, odor, and volatile organic compounds including pesticides and insecticides through high surface area adsorption.
5,000 galStage 3: Carbon Block
E3IL-12WCBNVY coconut shell carbon block at 5 micron provides secondary chlorine and VOC reduction with no channeling or carbon fines release.
2,500 galStage 4: RO Membrane
PT-1812-50 or TW30-1812-50 thin-film composite membrane removes up to 98% of TDS, heavy metals (lead, cadmium, chromium), fluoride, nitrates, and E.coli bacteria.
1–2 yearsStage 5: Inline Polish
IL-10W-C-EZ granular coconut carbon (12×40 mesh) removes any residual taste or odor from stored water. Built-in quick-connect fittings with pre/post filter pads.
2,500 galWhat Makes This Retrofit Kit Different
Tool-Free Filter Changes
EZ Twist-On connection design allows filter replacement in 3 seconds without wrenches or special tools. Color-coded cartridges prevent installation errors.
Ultra-Slim Profile
At just 4.75 inches deep, the E3RO550-RETRO fits in tight under-sink spaces where standard RO systems cannot. Ideal for retrofitting compact cabinets.
Recyclable Cartridges
Filter housings and cartridges use recyclable polypropylene and coconut-based carbon materials. Lighter weight reduces shipping impact and simplifies handling.
50 GPD Production Rate
Produces up to 50 gallons per day of purified water for household drinking, cooking, coffee, and beverage preparation needs.
Wide Operating Range
Functions in water temperatures from 40–85°F and pressures from 40–100 psi. Handles pH levels from 4–11 and TDS up to 2,000 ppm.
Commercial-Ready Design
NSF-certified materials suitable for residential and light commercial applications including offices, fitness centers, juice bars, and coffee shops.
Retrofit Installation Requirements
The PureT E3RO550-RETRO kit is designed to replace the filtration assembly in existing reverse osmosis systems while reusing the original storage tank, dedicated faucet, drain saddle, and feed valve. Compatible with standard 1/4-inch quick-connect tubing found on most residential RO systems. Requires a potable water supply with maximum 2,000 ppm TDS, minimum 40 psi inlet pressure, and temperature between 40–85°F. Not suitable as a standalone system without tank and faucet components. Replacement filters available individually: E3IL-12WS5GR (sediment), E3IL-12WCLBL (GAC), E3IL-12WCBNVY (carbon block), PT-1812-50 or TW30-1812-50 (membrane), IL-10W-C-EZ (polish). Ideal for upgrading systems from PureT, APEC, iSpring, Home Master, or other brands using standard inline filter dimensions.
All PureT filtration components use NSF-certified materials and are backed by the manufacturer's quality guarantee for residential and commercial water treatment applications.
