Part Number: 14A525-2 (Retainer) Part Number: 14A525-3 (Flange) Part Number: 14A526-1 (Bulkhead flange assembly) Part Number: 14A53000-001 (Adapter set) Part Number: 14A541 (Duct assy) Part Number: 14A541-11 (Weld assy) Part Number: 14A541-13 (Polyamide cover) Part Number: 14A541-15 (Duct straight) Part Number: 14A541-5 (Elbow) Part Number: 14A541-9 (Cover insulation) Part Number: 14A542 (Duct assy) Part Number: 14A542-11 (Weld assy) Part Number: 14A542-13 (Gusset) Part Number: 14A542-15 (Bracket)