Arlington 4003 1" Adjustable Throat Liner 25 PackArlington 4003 4003 Product Description Arlington's 1" Throat Liner, To be installed into fittings after Conduit, after fitting and wire are in place. Non Metallic. Specifications: Brand: ArlingtonSKU: 40031. 45 Inch Diameter X 0. 88 Inch Length SizeConduit Used onUL Approval1 Inch Trade SizeColor Gray About Arlington: Arlington Industries, Inc. was founded in 1949, and in its early years served the electrical industry as a regional supplier of zinc