The Miraco 834 Insulated Heat Tube is designed to protect Miraco livestock waterers from freezing by shielding ground water lines as they rise through frost levels. With an outside dimension of 14" x 30" and 2" of insulation, this heat tube helps ensure a consistent water supply even in harsh winter conditions. Constructed from the same durable polyethylene used in Miraco waterers, the 834 Heat Tube offers long-lasting, trouble-free performance. When paired with 3 feet of 12" plastic drainage tile, one 30-inch heat tube provides sufficient frost protection in most locations. For northern regions with deeper frost lines, two heat tubes may be required. Reliable and built to last, the 834 Insulated Heat Tube is a proven solution to maintain water flow and protect your system through the coldest months of the year.This product requires in-ground installation around the vertical portion of the water line and is not a simple drop-in accessory.