3" GASKETED VENT CONNECTOR, FOR USE WITH 203PV-204PV, SP3-SP4, PVCG30-PVCG40,PIN3PV-PIN4PV AND MINUTEMAN II GAS BOILERS, WARNING TO COMPLETE VENTING SYSTEM INSTALLATION USE ONLY AL29-4C COMPONENTS SPECIFIED IN INSTALLATION INSTRUCTIONS, DIMS:4-1/4"H X 4-3/8"W X 5-3/8"D, WEIGHT:6.8OZ, ORIGIN:UNKNOWN