AC Infinity Duct Carbon Filter XL | Australian Charcoal | Extra Large 4" new This replacement filter is easy

This replacement filter is easy to install

Dummy Plug

One is for turning the meter on and off while the other is used to enter the calibration mode

Get 24/7 pH&EC measurements for consistent yields every time

Quest 205 @ 75 F / 50% RH

AC Infinity Duct Carbon Filter XL | Australian Charcoal | Extra Large 4" new This replacement filter is easyDUCT CARBON FILTER XL, AUSTRALIAN CHARCOAL, EXTRA LARGE, 4 INCH A high airflow inline duct filter designed to eliminate odors and chemicals, most used in hydroponics builds, grow rooms, kitchens, smoking areas, and other ventilation projects. Features premium grade Australian Virgin charcoal bed made up of activated carbon. Its extra large size enables a greater capacity of the activated carbon to extend its lifespan while maximizing airflow