Click to expand Tap to zoom House & Garden Hydro® A 0.3 - 0 - 0.3 & B 0.1 - 0.3 - 0.5 by One Stop Hydro Save $-112.46 $112.46 | / SKU HGC749692 Hydro A 20 Liter (1/Cs) - $112.46 Hydro B 20 Liter (1/Cs) - $112.46 Size Hydro A 20 Liter (1/Cs) Hydro B 20 Liter (1/Cs) 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. House & Garden Hydro® A & B complete nutrition is designed for drain-to-waste (DTW) hydroponic systems.