InterSource Specialties Co. to Speak with a Live Sales Rep!!!!.Products. As the largest commercial HVAC rep in the Southeast, Tom Barrow Company provides a wide range of HVAC products from offices in Georgia, Florida and Tennessee..Acudor TSP Telescoping Safety Pole, for Roof Hatch Ladder. Aluminum construction with Mill finish coat. Mounts to two ladder rungs. Price Kit. ladder not included shipping leadtime days .SLE Y Safety Grab Bar for Roof Hatches. inch high grab features all steel construction, safety yellow color finish. Includes installation hardware. Mounts to exterior of hatch curb..