One piece molded all-poly tank Extra heavy duty, molded rim for additional strength, with sealed top lip for easy dumping Heavy duty, molded-in aluminum drain fitting and 1-1/4 in. poly drain plug Poly is FDA food grade approved, tested to -20 degrees F, corrosion free, impact resistant, and recyclable Tank contains the proper amount of UV inhibitor to prevent deterioration from sunlight Ideal for all watering needs