Lee Supply Company is one of the largest stocking distributors of products for HDPE Piping Systems in the Mid-Atlantic region – warehousing an extensive inventory of pipe, fittings, pumps and accessories. Fusion equipment: we are an authorized sales and service center for all McElroy equipment. In-house fabrication: in-house Y, T and Perf machines. Specialty fabrication: slope risers, manholes, manifolds, well heads, well seals, valve stem extensions, and biogas flares.