Bluelab pH 4.0 Calibration Solution 500 ml (6/Cs) Mother Earth® Coco + Perlite

Mother Earth® Coco + Perlite creates the perfect growing environment

The TrimBin Filter will nest into all other Trim Bins—sold separately—for maximum processing power

high-performance operation

pumice and 15 other ingredients

Orca® is a highly concentrated mycorrhizal and beneficial bacteria product

Bluelab pH 4.0 Calibration Solution 500 ml (6/Cs) Mother Earth® Coco + PerlitepH 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 Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.""