
Pentek - PCF1-20MB - 20" x 2.5" Mixed Bed Deionization Filter
PCF1-20MB 20" x 2.5" Mixed Bed DI Filter Cartridge
FDA-compliant mixed bed resin for pharmaceutical, laboratory, and precision manufacturing applications requiring ultra-pure, demineralized water
The Pentek PCF1-20MB delivers full demineralization for critical low-flow applications where near-zero TDS is required. Built with 600 grains of FDA-compliant mixed bed resin sandwiched between polypropylene barriers, this 20-inch cartridge fits standard housings and excels in pharmaceutical prep, cosmetic manufacturing, circuit board rinsing, and lab-grade water production. Rated for 0.50 GPM continuous flow with minimal pressure drop.
Pentek PCF1-20MB Filter Specs
| Model Number | PCF1-20MB |
| Dimensions | 20" x 2.5" (508mm x 68mm) |
| Resin Type | Mixed Bed (Cation + Anion) Moist Spherical Bead |
| Total Capacity | 600 Grains |
| Flow Rate | 0.50 GPM (Recommended Maximum) |
| Pressure Drop | 3.4 PSI @ 0.50 GPM (Initial) |
| Temperature Range | 40–100°F (4.4–37.8°C) |
| Media Compliance | FDA Standards |
| Housing Compatibility | Standard 20" x 2.5" Cartridge Housings |
Why Specify the PCF1-20MB
FDA-Grade Mixed Bed Resin
Cation and anion resins work in tandem to remove both positively and negatively charged ions, delivering near-zero TDS output suitable for pharmaceutical and cosmetic applications.
Polypropylene Barriers
Pre- and post-filters prevent resin bypass and media migration, ensuring clean deionized water without particulate contamination downstream.
Low-Flow Optimization
Engineered for 0.50 GPM operation with only 3.4 PSI initial pressure drop, ideal for point-of-use lab equipment, rinse stations, and precision manufacturing processes.
Standard 20" Cartridge Format
Direct-fit replacement for any standard 20-inch housing, making upgrades and routine maintenance straightforward across commercial and light industrial installations.
High-Purity Demineralization
600 grain capacity removes calcium, magnesium, sodium, chlorides, sulfates, and other dissolved minerals critical for preventing scale and contamination in sensitive equipment.
Wide Temperature Range
Operates reliably from 40°F to 100°F, accommodating most ambient and slightly heated water applications without resin degradation.
Where the PCF1-20MB Fits
The Pentek PCF1-20MB installs in any standard 20-inch filter housing designed for 2.5" diameter cartridges, including Pentek 20-inch housings and equivalent models from other manufacturers. Common applications include pharmaceutical water prep, cosmetic and personal care manufacturing, circuit board rinsing and electronics fabrication, laboratory reagent preparation, and polishing stages for reverse osmosis systems. Best deployed as a final demineralization stage after sediment and carbon filtration. Not suitable for high-flow whole-house or well water systems due to low recommended flow rate. For 10-inch housings, see the Pentek PCF1-10MB.
Pentek has been engineering reliable water filtration components for industrial and commercial use since 1966, meeting ISO 9001 quality standards.
PCF1-20MB 20" x 2.5" Mixed Bed DI Filter Cartridge
FDA-compliant mixed bed resin for pharmaceutical, laboratory, and precision manufacturing applications requiring ultra-pure, demineralized water
The Pentek PCF1-20MB delivers full demineralization for critical low-flow applications where near-zero TDS is required. Built with 600 grains of FDA-compliant mixed bed resin sandwiched between polypropylene barriers, this 20-inch cartridge fits standard housings and excels in pharmaceutical prep, cosmetic manufacturing, circuit board rinsing, and lab-grade water production. Rated for 0.50 GPM continuous flow with minimal pressure drop.
Pentek PCF1-20MB Filter Specs
| Model Number | PCF1-20MB |
| Dimensions | 20" x 2.5" (508mm x 68mm) |
| Resin Type | Mixed Bed (Cation + Anion) Moist Spherical Bead |
| Total Capacity | 600 Grains |
| Flow Rate | 0.50 GPM (Recommended Maximum) |
| Pressure Drop | 3.4 PSI @ 0.50 GPM (Initial) |
| Temperature Range | 40–100°F (4.4–37.8°C) |
| Media Compliance | FDA Standards |
| Housing Compatibility | Standard 20" x 2.5" Cartridge Housings |
Why Specify the PCF1-20MB
FDA-Grade Mixed Bed Resin
Cation and anion resins work in tandem to remove both positively and negatively charged ions, delivering near-zero TDS output suitable for pharmaceutical and cosmetic applications.
Polypropylene Barriers
Pre- and post-filters prevent resin bypass and media migration, ensuring clean deionized water without particulate contamination downstream.
Low-Flow Optimization
Engineered for 0.50 GPM operation with only 3.4 PSI initial pressure drop, ideal for point-of-use lab equipment, rinse stations, and precision manufacturing processes.
Standard 20" Cartridge Format
Direct-fit replacement for any standard 20-inch housing, making upgrades and routine maintenance straightforward across commercial and light industrial installations.
High-Purity Demineralization
600 grain capacity removes calcium, magnesium, sodium, chlorides, sulfates, and other dissolved minerals critical for preventing scale and contamination in sensitive equipment.
Wide Temperature Range
Operates reliably from 40°F to 100°F, accommodating most ambient and slightly heated water applications without resin degradation.
Where the PCF1-20MB Fits
The Pentek PCF1-20MB installs in any standard 20-inch filter housing designed for 2.5" diameter cartridges, including Pentek 20-inch housings and equivalent models from other manufacturers. Common applications include pharmaceutical water prep, cosmetic and personal care manufacturing, circuit board rinsing and electronics fabrication, laboratory reagent preparation, and polishing stages for reverse osmosis systems. Best deployed as a final demineralization stage after sediment and carbon filtration. Not suitable for high-flow whole-house or well water systems due to low recommended flow rate. For 10-inch housings, see the Pentek PCF1-10MB.
Pentek has been engineering reliable water filtration components for industrial and commercial use since 1966, meeting ISO 9001 quality standards.
Description
PCF1-20MB 20" x 2.5" Mixed Bed DI Filter Cartridge
FDA-compliant mixed bed resin for pharmaceutical, laboratory, and precision manufacturing applications requiring ultra-pure, demineralized water
The Pentek PCF1-20MB delivers full demineralization for critical low-flow applications where near-zero TDS is required. Built with 600 grains of FDA-compliant mixed bed resin sandwiched between polypropylene barriers, this 20-inch cartridge fits standard housings and excels in pharmaceutical prep, cosmetic manufacturing, circuit board rinsing, and lab-grade water production. Rated for 0.50 GPM continuous flow with minimal pressure drop.
Pentek PCF1-20MB Filter Specs
| Model Number | PCF1-20MB |
| Dimensions | 20" x 2.5" (508mm x 68mm) |
| Resin Type | Mixed Bed (Cation + Anion) Moist Spherical Bead |
| Total Capacity | 600 Grains |
| Flow Rate | 0.50 GPM (Recommended Maximum) |
| Pressure Drop | 3.4 PSI @ 0.50 GPM (Initial) |
| Temperature Range | 40–100°F (4.4–37.8°C) |
| Media Compliance | FDA Standards |
| Housing Compatibility | Standard 20" x 2.5" Cartridge Housings |
Why Specify the PCF1-20MB
FDA-Grade Mixed Bed Resin
Cation and anion resins work in tandem to remove both positively and negatively charged ions, delivering near-zero TDS output suitable for pharmaceutical and cosmetic applications.
Polypropylene Barriers
Pre- and post-filters prevent resin bypass and media migration, ensuring clean deionized water without particulate contamination downstream.
Low-Flow Optimization
Engineered for 0.50 GPM operation with only 3.4 PSI initial pressure drop, ideal for point-of-use lab equipment, rinse stations, and precision manufacturing processes.
Standard 20" Cartridge Format
Direct-fit replacement for any standard 20-inch housing, making upgrades and routine maintenance straightforward across commercial and light industrial installations.
High-Purity Demineralization
600 grain capacity removes calcium, magnesium, sodium, chlorides, sulfates, and other dissolved minerals critical for preventing scale and contamination in sensitive equipment.
Wide Temperature Range
Operates reliably from 40°F to 100°F, accommodating most ambient and slightly heated water applications without resin degradation.
Where the PCF1-20MB Fits
The Pentek PCF1-20MB installs in any standard 20-inch filter housing designed for 2.5" diameter cartridges, including Pentek 20-inch housings and equivalent models from other manufacturers. Common applications include pharmaceutical water prep, cosmetic and personal care manufacturing, circuit board rinsing and electronics fabrication, laboratory reagent preparation, and polishing stages for reverse osmosis systems. Best deployed as a final demineralization stage after sediment and carbon filtration. Not suitable for high-flow whole-house or well water systems due to low recommended flow rate. For 10-inch housings, see the Pentek PCF1-10MB.
Pentek has been engineering reliable water filtration components for industrial and commercial use since 1966, meeting ISO 9001 quality standards.


















