Canna Flush Size:5 Litre Less convenient for sealed rooms

Less convenient for sealed rooms where you want consistent levels

This is one of the most popular controllers on the market for a reason — it does what it's supposed to do

5cm diameter

though it will also fit other standard 315W CDM lamps and ballasts

Canna Flush Size:5 Litre Less convenient for sealed roomsCanna Flush Clean Substrates Before Harvest or After Overfeeding Best for: Growers who need to clear excess nutrients from their substrate before harvest, or after accidentally overfeeding. Our thoughts Every grower overfeeds at some point, and running plain water through the substrate on its own doesn't always shift built up salts properly. Canna Flush does the job without nuking the beneficial bacteria and fungi in your root zone the way reverse