Pentek
20" x 2.5" Empty Fillable Cartridge Shell
Custom filtration media housing for specialized water treatment applications
Food-Grade Construction
20" Standard Size
Refillable Design
Media Customizable
The Pentek empty fillable cartridge shell gives you complete control over your filtration media. This 20-inch housing lets you create custom blends of activated carbon, specialty resins, bone char, KDF, or other media tailored to your specific water chemistry needs.
SPECIFICATIONS
Technical Details
| Dimensions | 20" x 2.5" (standard size) |
| Outer Diameter | 2.75" |
| Construction | Food-grade polypropylene |
| End Caps | Removable for media loading |
| Media Capacity | Approximately 3-4 lbs depending on media type |
| Flow Direction | Radial (outside-in) |
| Service Life | Varies by media type and water quality |
COMPATIBILITY
Housing Requirements
This Pentek empty cartridge shell fits all standard 20-inch filter housings with 2.5-inch diameter capacity. Compatible with Big Blue housings and similar 20" x 4.5" sump-style filter systems. Ideal for whole-house systems, point-of-entry treatment, commercial applications, or specialized filtration projects requiring custom media blends. Can be refilled and reused multiple times with proper cleaning between media changes.
