Bluelab pH Pen special-order and it’s also well suited

and it’s also well suited for pools and spas

It is fortified with a proprietary blend of select trace minerals

If you’re assembling a flood-and-drain fitting kit from scratch or replacing worn parts

Max Current: 3

Power Output: 300 Watt

Bluelab pH Pen special-order and it’s also well suitedBluelab pH Pen is a handheld pH meter for quick pH and temperature readings in nutrient solution, built to help you keep solution conditions in the right range for healthy plant growth. Its also a portable pH tester that makes routine checks feel simple, especially when you want reliable numbers without a full bench setup. This pH and temperature pen is designed for everyday spot checks in solution, with a compact handheld design thats easy to keep on