Aries (AF-20-4202) 20"x2.5" Twin Bed Mixed Bed DI Filter
Aries AF-20-4202 20"x2.5" Twin Bed Mixed Bed DI Filter
Lab-grade deionization in a standard 20-inch cartridge. For applications that demand near-zero TDS and ultra-pure water.
Mixed bed deionization removes dissolved solids that carbon and sediment filters miss
Twin Bed DI Resin
Separate cation and anion resins work together to strip dissolved minerals, producing water with near-zero conductivity for demanding applications.
Ultra-Low TDS Output
Reduces total dissolved solids to trace levels, ideal for laboratory use, spot-free rinsing, and processes requiring high-purity water.
Whole-House & Well Ready
20"x2.5" standard size fits most 20-inch housings. Works as final polish stage in whole-house systems or well water setups after sediment and carbon filtration.
Drop-In Replacement
Standard cartridge format makes replacement straightforward. Pre-filtration required to protect resin from sediment and chlorine damage.
Fits standard 20-inch filter housings
The Aries AF-20-4202 fits any standard 20" x 2.5" filter housing with a single-cartridge configuration. Compatible with Aries Filter Works housings and most industry-standard 20-inch whole-house and well water filter systems. Must be installed after sediment and carbon pre-filters to prevent fouling. Not for use with chlorinated water unless carbon filtration is upstream.
Monitor TDS and replace when exhausted
Typical Service Life
Varies widely based on inlet TDS levels and water volume. High-TDS water exhausts resin faster. Use a TDS meter to monitor output quality.
Replace When TDS Rises
When output TDS begins to climb or conductivity increases, the resin is exhausted. Replace cartridge promptly to maintain water purity.
Pre-Filtration Required
Always install sediment and carbon filters upstream. Sediment fouls resin beds, and chlorine degrades resin capacity permanently.
Lab-Grade Purity
Mixed bed DI resin delivers ultra-pure water for applications that demand near-zero conductivity and minimal dissolved solids.
Standard Sizing
20"x2.5" format works with existing whole-house and well water filter housings for easy integration into multi-stage systems.
Proven Filtration
Aries Filter Works manufactures specialty cartridges for demanding water treatment applications, trusted by professionals and DIY installers alike.
Aries AF-20-4202 20"x2.5" Twin Bed Mixed Bed DI Filter
Lab-grade deionization in a standard 20-inch cartridge. For applications that demand near-zero TDS and ultra-pure water.
Mixed bed deionization removes dissolved solids that carbon and sediment filters miss
Twin Bed DI Resin
Separate cation and anion resins work together to strip dissolved minerals, producing water with near-zero conductivity for demanding applications.
Ultra-Low TDS Output
Reduces total dissolved solids to trace levels, ideal for laboratory use, spot-free rinsing, and processes requiring high-purity water.
Whole-House & Well Ready
20"x2.5" standard size fits most 20-inch housings. Works as final polish stage in whole-house systems or well water setups after sediment and carbon filtration.
Drop-In Replacement
Standard cartridge format makes replacement straightforward. Pre-filtration required to protect resin from sediment and chlorine damage.
Fits standard 20-inch filter housings
The Aries AF-20-4202 fits any standard 20" x 2.5" filter housing with a single-cartridge configuration. Compatible with Aries Filter Works housings and most industry-standard 20-inch whole-house and well water filter systems. Must be installed after sediment and carbon pre-filters to prevent fouling. Not for use with chlorinated water unless carbon filtration is upstream.
Monitor TDS and replace when exhausted
Typical Service Life
Varies widely based on inlet TDS levels and water volume. High-TDS water exhausts resin faster. Use a TDS meter to monitor output quality.
Replace When TDS Rises
When output TDS begins to climb or conductivity increases, the resin is exhausted. Replace cartridge promptly to maintain water purity.
Pre-Filtration Required
Always install sediment and carbon filters upstream. Sediment fouls resin beds, and chlorine degrades resin capacity permanently.
Lab-Grade Purity
Mixed bed DI resin delivers ultra-pure water for applications that demand near-zero conductivity and minimal dissolved solids.
Standard Sizing
20"x2.5" format works with existing whole-house and well water filter housings for easy integration into multi-stage systems.
Proven Filtration
Aries Filter Works manufactures specialty cartridges for demanding water treatment applications, trusted by professionals and DIY installers alike.
Original: $60.76
-65%$60.76
$21.27Description
Aries AF-20-4202 20"x2.5" Twin Bed Mixed Bed DI Filter
Lab-grade deionization in a standard 20-inch cartridge. For applications that demand near-zero TDS and ultra-pure water.
Mixed bed deionization removes dissolved solids that carbon and sediment filters miss
Twin Bed DI Resin
Separate cation and anion resins work together to strip dissolved minerals, producing water with near-zero conductivity for demanding applications.
Ultra-Low TDS Output
Reduces total dissolved solids to trace levels, ideal for laboratory use, spot-free rinsing, and processes requiring high-purity water.
Whole-House & Well Ready
20"x2.5" standard size fits most 20-inch housings. Works as final polish stage in whole-house systems or well water setups after sediment and carbon filtration.
Drop-In Replacement
Standard cartridge format makes replacement straightforward. Pre-filtration required to protect resin from sediment and chlorine damage.
Fits standard 20-inch filter housings
The Aries AF-20-4202 fits any standard 20" x 2.5" filter housing with a single-cartridge configuration. Compatible with Aries Filter Works housings and most industry-standard 20-inch whole-house and well water filter systems. Must be installed after sediment and carbon pre-filters to prevent fouling. Not for use with chlorinated water unless carbon filtration is upstream.
Monitor TDS and replace when exhausted
Typical Service Life
Varies widely based on inlet TDS levels and water volume. High-TDS water exhausts resin faster. Use a TDS meter to monitor output quality.
Replace When TDS Rises
When output TDS begins to climb or conductivity increases, the resin is exhausted. Replace cartridge promptly to maintain water purity.
Pre-Filtration Required
Always install sediment and carbon filters upstream. Sediment fouls resin beds, and chlorine degrades resin capacity permanently.
Lab-Grade Purity
Mixed bed DI resin delivers ultra-pure water for applications that demand near-zero conductivity and minimal dissolved solids.
Standard Sizing
20"x2.5" format works with existing whole-house and well water filter housings for easy integration into multi-stage systems.
Proven Filtration
Aries Filter Works manufactures specialty cartridges for demanding water treatment applications, trusted by professionals and DIY installers alike.
