GS Plant Foods Cal-Mag 420 Dry Super Concentrate, Makes 420 Gallons of Nutrient Solution, 18 Ounces, Calcium/Magnesium Fertilizer cat_Key Chain Inner Diameter (air filter side):

Inner Diameter (air filter side): 48mm/ Outer Diameter(air filter side): 52mm

no-clump powder can be added to your favorite smoothies or mixed with hot water

you can buy with confidence knowing you're getting a top-quality product

SAY GOODBYE TO MOTH PROBLEMS - No more worrying about clothes being ruined or food going bad

Effective Roach Traps indoor: Easy to use

GS Plant Foods Cal-Mag 420 Dry Super Concentrate, Makes 420 Gallons of Nutrient Solution, 18 Ounces, Calcium/Magnesium Fertilizer cat_Key Chain Inner Diameter (air filter side):Brand: GS Plant Foods Features: Completely water soluble powder that makes 420 gallons of nutrient solution per container. Plants require both primary nutrients and secondary nutrients. Cal Mag 420 is packed with secondary nutrients, it contains Calcium 13%, Sulfur 4% and Magnesium 3%. Beneficial to plants throughout all growth cycles and easily mixes with water to use during irrigation or as a foliar spray. Easy To Use, perfect for all stages of