Chloraguard Carbon Block 1micron Hawkfish GFO is one of the

GFO is one of the few ways to easily maintain ultra low phosphate on a consistent basis

Please follow dosage instructions

They have an appearance similar to a spider

the VorTech QuietDrive eliminates "flow hot spots"

Chloraguard Carbon Block 1micron Hawkfish GFO is one of theMatrikx Chloraguard filters feature amazingly high capacity for chlorine reduction since it is made from a proprietary catalytic carbon that can deliver up to 4 times the capacity for monochloramine reduction. With a high dirt holding & absorption capacities, Matrikx Chloraguard filters not only meets but exceeds NSF and WQA standards. 1 Micron Nominal Filtration Proprietary Catalytic Carbon Exceptionally Low Pressure Drops High Dirt Holding Excellent