Emerald Harvest pH Up, 1 qt Hygrometer These filters also feature superior

These filters also feature superior two-stage air filtration design: air is filtered once as it enters the filter

Outer Dimensions: 1''

Reinforced plastic corners for higher durability

"Sensors should remain dry and clean to prevent premature failure

3% Peracetic Acid

Emerald Harvest pH Up, 1 qt Hygrometer These filters also feature superiorEmerald Harvest pH Up, 1 qt Product Details Emerald Harvest pH Up pH up and pH down: Keep the nutrient solution and the growing medium in the sweet spot (pH 5. 56. 5) for optimal nutrient uptake and no nutrient deficiencies. pH Up and Down are buffers composed of a weak base (Up) and weak acid (Down) designed to correct pH imbalances. pH Up and pH Down adjust the pH for optimal nutrient uptake and stable beneficial bacteria colonies, and they