0542 Vented Fill f/1-1/2″ Hose – Angled Neck – Gas – Black Black Polymer Cap with Black Polymer Body. Black Polymer Strap. Integral Tank Vent with Flame Arrestor and Anti Surge Valve Technical Information For Hose Size: 1-1/2″. For Vent Hose: 5/8″. O.D. Flange: 3-5/8″. Neck Length: 2-7/16″. Mounting Hole Dia.: 2-1/8″. Screw Size: #8.