AC Infinity Refillable Carbon Filter Kit, with Charcoal Refill, 4-Inch 9 CFM Reapply after 5–7 days if

Reapply after 5–7 days if needed for especially tough or established weeds

50% more UV than competition

3 x water-tight trays

00: This is a high-quality calibration solution provided in a 20ml sachet

and improved interface when opening the system to view cuttings

AC Infinity Refillable Carbon Filter Kit, with Charcoal Refill, 4-Inch 9 CFM Reapply after 5–7 days ifDescription Reusable Carbon Filter: This patented design eliminates the need for replacing entire filters. The package includes over one refill, matching the filtration capacity of two standard 4" carbon filters, thereby offering a cost effective solution. The removable twist off flanges allow for easy, tool free refilling using the included funnel and scoop. Efficient Odor Blocking Capability: The expanded chamber is lab tested to block odors as