Perlite #4 Large & Bulky 4 cu.ft. bag - Half Pallet of 15No 4 Perlite features LARGE and BULKY particles which maximize nutrient uptake, drainage, and aeration and help prevent water rot at the root level. Perlite can be used as a stand alone medium in drip systems or as a mix in element with other growth mediums, and works especially well for plants that need excellent drainage. "MIDWEST AND EAST COAST ORDERS SHIPPING FROM OUR MICHIGAN WAREHOUSE WILL INCURE A $7. 25 SURCHAGE PER UNIT ABOVE PUBLISHED