Bluelab pH 4.0 Calibration Solution 500 ml iPower Grow Lights They come in clearly marked

They come in clearly marked biodegradable UV resistant sleeves for comfortable handling and algae prevention

Most growers think of fungi as something bad that can happen to their crop

Titan Controls Helios 10 - Pre-Wired 8 Light 240 Volt Controller with Trigger Cord & Timer

1 year warranty

Great for spot application

Bluelab pH 4.0 Calibration Solution 500 ml iPower Grow Lights They come in clearly markedpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.