Description
8_7 8x19_1 8x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack hydro x The 25u offers smaller holes The 25u offers smaller holes and gives you a more filtered and refined product where the 150u has larger holes that allows material to pass through easier and can potentially provide slightly higher yields KALIX Kelp is ideal for adding to nutrient solutions and foliar sprays