Bluelab Replacement pH Probe for Combo, Guardian and pH Controller grow-light-bulbs The controller is compatible with

The controller is compatible with 315W

Release Rates: Release Green Lacewing larvae at a rate of 2 larvae per 20 pest insects

1680D Fabric: These tents are made with 1680D thread density fabric

Root·Juice™allows an optimal development of the roots of the plant

Bluelab Replacement pH Probe for Combo, Guardian and pH Controller grow-light-bulbs The controller is compatible withBluelab Replacement pH Probe: Durable & Accurate pH Measurement for Your Bluelab Devices Keep your Bluelab pH devices performing at their best with the Bluelab Replacement pH Probe! This durable and affordable probe is compatible with a range of Bluelab meters and controllers, providing accurate and reliable pH measurements for optimal plant growth. Why pH Matters for Plant Health: pH plays a critical role in nutrient availability. Plants can only