Concentric Vent ElbowConcentric Vent Elbow, 4 x 6 in, 45 deg, PolypropyleneDescriptionECCO Manufacturing™ Concentric Vent Elbow, 4 x 6 in, 45 deg Angle, Polypropylene, Additional Information: Model 4645CEL
ECCO Manufacturing, Concentric Vent Elbow, 190473, 4 x 6in, 45deg