
Aries (AF-20-4020-BB) 20"x4.5" Big Blue Ultra Purity-Low Odor Mixed Bed DI Filter
AF-20-4040-BB 20"x4.5" Big Blue Ultra Purity Mixed Bed DI Filter
The Aries AF-20-4040-BB uses pharmaceutical-grade mixed bed deionization resin to strip dissolved solids to near-zero levels. This 20"x4.5" Big Blue cartridge fits standard whole-house housings and delivers ultra-pure water for laboratory equipment, spot-free rinsing, and industrial processes where mineral content compromises results.
Engineered for Maximum Purity
Mixed Bed Ion Exchange
Combines cation and anion resins in a single cartridge to remove both positive and negative ions, achieving near-zero TDS output
Ultra-Low Odor Resin
Specially formulated resin bed eliminates the chemical odor typical of standard DI filters, ideal for sensitive applications
20"x4.5" Big Blue Size
Fits all standard 20 inch Big Blue filter housings with 4.5 inch outer diameter, providing high capacity in a common format
Laboratory-Grade Purity
Delivers water quality suitable for autoclaves, rinse stations, analytical equipment, and other applications requiring mineral-free water
Industrial Capacity
Large cartridge volume provides extended service life for whole-house or light commercial installations compared to smaller DI filters
Post-RO Polishing
Ideal as final-stage polishing after reverse osmosis systems to eliminate residual TDS and achieve maximum conductivity reduction
System Integration
The Aries AF-20-4040-BB installs in any 20 inch Big Blue housing with 4.5 inch diameter capacity. Common applications include post-RO polishing systems, spot-free car wash final rinse, laboratory water purification systems, pharmaceutical manufacturing, electronics rinsing, aquarium water conditioning, and steam equipment protection. Compatible with Pentek, Culligan, Hydronix, and other standard Big Blue housings. Best used after sediment and carbon pre-filtration to maximize resin life. Typically installed after reverse osmosis membranes for final TDS reduction to <1 ppm.
Aries Filter Works manufactures specialty filtration solutions for applications where standard carbon and sediment filters aren't enough.
AF-20-4040-BB 20"x4.5" Big Blue Ultra Purity Mixed Bed DI Filter
The Aries AF-20-4040-BB uses pharmaceutical-grade mixed bed deionization resin to strip dissolved solids to near-zero levels. This 20"x4.5" Big Blue cartridge fits standard whole-house housings and delivers ultra-pure water for laboratory equipment, spot-free rinsing, and industrial processes where mineral content compromises results.
Engineered for Maximum Purity
Mixed Bed Ion Exchange
Combines cation and anion resins in a single cartridge to remove both positive and negative ions, achieving near-zero TDS output
Ultra-Low Odor Resin
Specially formulated resin bed eliminates the chemical odor typical of standard DI filters, ideal for sensitive applications
20"x4.5" Big Blue Size
Fits all standard 20 inch Big Blue filter housings with 4.5 inch outer diameter, providing high capacity in a common format
Laboratory-Grade Purity
Delivers water quality suitable for autoclaves, rinse stations, analytical equipment, and other applications requiring mineral-free water
Industrial Capacity
Large cartridge volume provides extended service life for whole-house or light commercial installations compared to smaller DI filters
Post-RO Polishing
Ideal as final-stage polishing after reverse osmosis systems to eliminate residual TDS and achieve maximum conductivity reduction
System Integration
The Aries AF-20-4040-BB installs in any 20 inch Big Blue housing with 4.5 inch diameter capacity. Common applications include post-RO polishing systems, spot-free car wash final rinse, laboratory water purification systems, pharmaceutical manufacturing, electronics rinsing, aquarium water conditioning, and steam equipment protection. Compatible with Pentek, Culligan, Hydronix, and other standard Big Blue housings. Best used after sediment and carbon pre-filtration to maximize resin life. Typically installed after reverse osmosis membranes for final TDS reduction to <1 ppm.
Aries Filter Works manufactures specialty filtration solutions for applications where standard carbon and sediment filters aren't enough.
Original: $225.00
-65%$225.00
$78.75Description
AF-20-4040-BB 20"x4.5" Big Blue Ultra Purity Mixed Bed DI Filter
The Aries AF-20-4040-BB uses pharmaceutical-grade mixed bed deionization resin to strip dissolved solids to near-zero levels. This 20"x4.5" Big Blue cartridge fits standard whole-house housings and delivers ultra-pure water for laboratory equipment, spot-free rinsing, and industrial processes where mineral content compromises results.
Engineered for Maximum Purity
Mixed Bed Ion Exchange
Combines cation and anion resins in a single cartridge to remove both positive and negative ions, achieving near-zero TDS output
Ultra-Low Odor Resin
Specially formulated resin bed eliminates the chemical odor typical of standard DI filters, ideal for sensitive applications
20"x4.5" Big Blue Size
Fits all standard 20 inch Big Blue filter housings with 4.5 inch outer diameter, providing high capacity in a common format
Laboratory-Grade Purity
Delivers water quality suitable for autoclaves, rinse stations, analytical equipment, and other applications requiring mineral-free water
Industrial Capacity
Large cartridge volume provides extended service life for whole-house or light commercial installations compared to smaller DI filters
Post-RO Polishing
Ideal as final-stage polishing after reverse osmosis systems to eliminate residual TDS and achieve maximum conductivity reduction
System Integration
The Aries AF-20-4040-BB installs in any 20 inch Big Blue housing with 4.5 inch diameter capacity. Common applications include post-RO polishing systems, spot-free car wash final rinse, laboratory water purification systems, pharmaceutical manufacturing, electronics rinsing, aquarium water conditioning, and steam equipment protection. Compatible with Pentek, Culligan, Hydronix, and other standard Big Blue housings. Best used after sediment and carbon pre-filtration to maximize resin life. Typically installed after reverse osmosis membranes for final TDS reduction to <1 ppm.
Aries Filter Works manufactures specialty filtration solutions for applications where standard carbon and sediment filters aren't enough.
















