Field tile in all sizes of rolls, fittings, HDPE pipe smooth wall, with or without gasket ends, couplings. Babcock’s single wall drain tile, also called “Big O”, is available in numerous sizes and lengths, most common and in stock is 4″ and 6″ lengths varying from 50′, 100′ and 250′ rolls. Our High-density polyethylene (HDPE) pipe is engineered for gravity flow system and is available in a range of designs to meet standard and unique project requirements. The design and construction of our HDPE products offer a distinct weight advantage over conventional sewer pipe, providing ease of handling, positioning, installing and connecting.