Pure Nature Pets 40lb bag, Horse Fresh, Horse Stall Freshener, Horse Stall Refresher, Horse trailer deodorizer, horse ammonia reducer Horse Fresh Stall Refresher, lowers aerial ammonia emissions by 30% - 60% while maintaining a lower odor threshold in barns, stalls, and trailers Spread under bedding before laying to pull down odors, while spot treating soaked spots to extend the life of your bedding 100% natural Clinoptilolite Zeolite, a natural odor eliminating product without the harmful effects of lime Organic & all-natural; processed and produced in the USA