... insulation pipe Foamed for air conditionerspecification: (1)ID size: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8", 1-5/8", 1 ... -7/8", 2", 2-1 ... us at any time.Lucy Chen powdered rubber foam insulation pipe for air conditioner