This is a 10″ x 2″ 20 micron pH stabilizing calcite/carbon inline filter with 1/4″ FPT ports (Pentek GS-10CAL-RO-B).
10″ x 2″ 20 Micron pH Stabilizing Calcite/Carbon Inline Filter w/ 1/4″ FPT Ports (Pentek GS-10CAL-RO-B)
This inline post filter is designed to dissolve calcite into reverse osmosis water to correct the low pH created by the RO process. The filter uses a combination of granular activated carbon and calcite to act as a post filter and neutralize low pH.
This top-quality cartridge is made by Pentek, the largest brand in the filtration industry, and is NSF Certified.
Model Maximum Dimensions Port Size Connection Type Chlorine Capacity @ Flow*
| GS-10CAL/RO-B | 10″ × 2″ | 1/4″ | FNTP | >1,000 gallons @ 1.0 GPM |
| GS-10CAL/RO-H | 10″ × 2″ | 3/8″ | John Guest | >1,000 gallons @ 1.0 GPM |
* Based on manufacturer’s internal testing.
