14''x40'' Funk Filter Replacement Pre-Filters spl_hgc Never before has there been

Never before has there been a pH controller with these features for this value

the REVOLVE has an adjustable hot-start prevention feature to ensure proper cooling before the device attempts to re-fire your valuable lamps

The ONA Carbon-Air unit has two 6 inch ports to facilitate airflow into the carbon filter and out through the fan unit

This technology insures that

Can be purchased separately

14''x40'' Funk Filter Replacement Pre-Filters spl_hgc Never before has there beenFunk Filter Replacement pre filters drastically improve the longevity of your filters life. Pre filters work by trapping dust, airborne particles, and other contaminates. Pre filters are individually sealed in plastic bags for cleanliness.