Bluelab Replacement pH Probe pro active Progrow Carbon Filters are designed

Progrow Carbon Filters are designed with a focus on durability

Support frequent hydroponic irrigation

Designed for Optimal Light Distribution: Maximizes light reaching your plants

Salt levels

Bluelab Replacement pH Probe pro active Progrow Carbon Filters are designedDouble junction probe reduces reference contamination, extending longevity Fully waterproof not just water resistant BNC connector allows use with all other compatible Bluelab products 2 metre cable for measuring in hard to reach locations Use the included storage cap with KCl to lengthen probes lifespan Fast sensor response ensures quick and accurate measurements Polycarbonate housing for long lasting strength Effective in solutions of 0. 2 EC and