ANDREW Pipe to Pipe Adapter for Tapered Leg. Adapts 1-1/2 thru 3-1/2 OD pipe to 4 thru 9 OD pipe. Kit of 2. Hot dipped galv steel. This listing is for Pair. Minimum Mounting Diameter 2 4 in Description Joins 1-1/2 - 3-1/2 OD pipe to 4 - 9 OD pipe. Maximum Mounting Diameter 2 9 in Qty/ Uom 1 Pair Minimum Mounting Diameter 1-1/2 in Maximum Mounting Diameter 3-1/2 in