This is a 10″ x 2″ 5 micron inline KDF/GAC filter with 1/4 FPT ports (Pentek GS-10EXTRA.5-B).
| Model | Maximum Dimensions | Port Size | Connection Type | Chlorine Capacity @ Flow* |
|---|---|---|---|---|
| GS-6EXTRA.25-B | 6″ × 2″ | 1/4″ | FNTP | >2,500 gal @ 0.5 GPM |
| GS-6EXTRA.25-G | 6″ × 2″ | 1/4″ | John Guest | >2,500 gal @ 0.5 GPM |
| GS-10EXTRA.5-B | 10″ × 2″ | 1/4″ | FNTP | >5,000 gal @ 1.0 GPM |
| GS-10EXTRA.5-C | 10″ × 2″ | 3/8″ | FNTP | >5,000 gal @ 1.0 GPM |
* Based on manufacturer’s internal testing.



