Bluelab Replacement pH Probe This hefty pelletized carbon bed

This hefty pelletized carbon bed effectively makes the filter the “biggest sponge” for VOC removal capable of holding massive amounts of contaminant leading to a lifespan that leaves other filters

5 in round with a slit that allows easy insertion of a cutting

Due to its size

are formed with an easy-to-clean diagonal drainage grid to direct water toward drainage fittings

Bluelab Replacement pH Probe This hefty pelletized carbon bedThe Bluelab Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops' daily nutrient requirements. Simple push button pH calibration. Successful pH calibration indicators. Low battery indicator. Over range and under range indicators. Display options available in degrees C and F, EC, CF, ppm