Concentric Vent ElbowConcentric Vent Elbow, 4 x 6 in, 87 deg, PolypropyleneDescriptionECCO Manufacturing™ Concentric Vent Elbow, 4 x 6 in, 87 deg Angle, Polypropylene, Additional Information: Model 4687CEL
ECCO Manufacturing, Concentric Vent Elbow, 190471, 4 x 6in, 87deg