Dial Manufacturing 4294 1/4-Inch by 50-Feet Natural Poly Tubing Product Description Dial Manufacturing, Inc. is in the business of providing replacement parts and accessories for evaporative coolers. Headquartered in Phoenix, Arizona, it is owned and operated by the same family that founded it in 1965. Dial is the undisputed industry leader, with the broadest product assortment and packaging options available. From the Manufacturer Dial Manufacturing, Inc. is in the business of providing replacement parts and accessories for evaporative coolers. Headquartered in Phoenix, Arizona, it is owned and operated by the same family that founded it in 1965. Dial is the undisputed industry leader, with the broadest product assortment and packaging options available Features Poly tubing For outdoor use only Use to run water to coolers 1/4 inch O.D. x 50 foot USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.