Southwark 21 Series 2188 Duct End Cap, 8 X 8 in, 26 ga, Steel
Southwark 55 Series 555 End Cap, 5 in, 28 ga, Steel
Southwark 55 Series 556 End Cap, 6 in, 28 ga, Steel
Southwark 55 Series 557 End Cap, 7 in, 28 ga, Steel