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Clear-water Barley Straw
Barley straw is a safe and natural product that cleans water tanks by reducing particles and odors for up to six months. Straw is wrapped in netting and placed in a 10-1/2"Lx4-1/2"-dia. perforated plastic case. Just remove the label and drop the case in your tank. Can also be used to treat ponds up to 1,000 gals. Safe for use around animals. USA made.