Isopure Water
Water Softening Cartridge Big Blue 20"
Ion exchange resin cartridge for whole-house Big Blue housings
20-Inch Length
4.5" Diameter
Big Blue Compatible
Resin Media
This 20-inch water softening cartridge fits standard Big Blue 4.5" x 20" housings and uses ion exchange resin to reduce hardness minerals like calcium and magnesium. Designed for point-of-use applications or as a pre-treatment stage before RO systems in areas with moderately hard water.
SPECIFICATIONS
Cartridge Details
| Dimensions | 4.5" diameter x 20" length |
| Housing Compatibility | Big Blue 20" (4.5" x 20") |
| Media Type | Food-grade ion exchange resin |
| Flow Rate | Up to 5 GPM (depending on system) |
| Service Life | 3-6 months (varies by hardness level and usage) |
| Temperature Range | 40-100°F |
COMPATIBILITY
Housing Requirements
This cartridge requires a Big Blue 20-inch filter housing with 4.5-inch diameter capacity. It will not fit standard 10-inch housings or slim-line 2.5-inch cartridge systems. Verify your housing size before ordering. Ideal for installation upstream of reverse osmosis systems, water heaters, or appliances in moderately hard water areas where full whole-house softening is not required.
