| Brand | Bluelab |
|---|---|
| Type | pH Pen |
| MPN | BLU2210 |
Check the listing for details. BlueLab pH Pen Hydroponic Blue Lab pH Meter Aquarium. Condition: Used. Listed at 86.00 USD. The Bluelab pH Pen and conductivity pen range has been specially developed as an affordable and effective option for hobby or small scale growers. Hydroponic growing lets you give the best care possible to your plants.
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