AC Infinity Pre-Filter Cloth for Inline Carbon Filter, 8-Inch, 2-Pack pH Meters | Pens | Monitors Outer diameter: 10"Inner plate diameter:

Outer diameter:  10"Inner plate diameter:  9"Height:  1 1/2"

With simple ventilation

Xtreme Gardening®

Naturally aged and composted: Prepared to remove unwanted tannins before packaging

The light will flash once every 10 seconds to indicate it is running

AC Infinity Pre-Filter Cloth for Inline Carbon Filter, 8-Inch, 2-Pack pH Meters | Pens | Monitors Outer diameter: 10"Inner plate diameter:AC Infinity Pre Filter Cloth for Inline Carbon Filter A filter cloth designed to extend carbon filter lifespan by protecting its charcoal bed from debris. Form fitting sleeve made of polyester to block hair, dust, lint, pollen, and other larger particles. Breathable fabric allows complete, 100% air passthrough for proper air filtration and odor control. Reusable for up to 6 months of continuous use at a time between dusting and machine washing. Size: