House & Garden Top Booster Size:Top Booster - 1L A dedicated air pump keeps

A dedicated air pump keeps the solution oxygen-rich around the clock

no-fuss meter for checking the pH of your nutrient mix before it goes anywhere near your plants

German-engineered inline extraction that just keeps running

ethically sourced

House & Garden Top Booster Size:Top Booster - 1L A dedicated air pump keepsDrive more flowering sites and heavier fruit set late in bloom House & Garden Top Booster is a PK booster designed to slot into the rest of the House & Garden range. It delivers higher levels of phosphorus and potassium at the critical late flowering stage, helping build more flowering sites and a heavier onset of fruit for a denser, better finished crop. It works with most growing substrates and watering systems. Key Benefits More flowering sites