Skip to main content

610-279-4500 [email protected]

AC System Protection

Line Set Protection Refrigerant Protection Surge Protectors

Apparel and Bags

Bags and Totes Gloves Personal Safety Apparel Shoe Covers

Boxes, Enclosures and Accessories Kitchen Appliances, Parts and Accessories Laundry Appliances, Parts and Accessories

Chemicals, Lubricants, Sealants, and Applicators

Adhesives and Sealants Chemicals Cleaners Insecticides and Pest Controls Oils and Lubricants Paint Brushes, Rollers, and Trays Paints and Primers

Compressors and Accessories

Compressor Accessories Compressors

Cable Ties Circuit Breakers and Accessories Conduit and Fittings Contactors and Accessories Cords, Connectors, and Cables Electrical Boxes and Covers Electrical Components Fuses Relays and Accessories Safety and Disconnect Switches Timers and Accessories Transformers Wire and Cable Wiring Devices

Heating and Cooling Equipment

AC Units Air Handlers Boilers and Parts Coils Ductless Furnaces Heat Kits Heat Pump Condensers Heaters PTACs Unassigned - Heating and Cooling Equipment Water Heaters, Parts and Accessories Window and Portable Units

Air Conditioners HVAC Controls and Thermostats

Installation Accessories

Condensate Drain Pans, Traps, and Switches Condensate Pumps Hanging and Support Systems Pads Risers and Stand Rubber Insulation Screws and Fasteners

Duct Board, Wrap, and Liners Foams and Miscellaneous Insulation Reflective Insulation and Radiant Barriers Unassigned - Insulation

Show all Products

Home
Products
Sheet Metal Duct and Pipe
Rectangular Duct and Fittings
Rectangle Duct Fittings
21166

No image available

Southwark Metal Manufacturing

21166

16x6 End Cap (6)

Recently Viewed Products

Purchase Options(1 offer)

$15.24

16x6 End Cap (6)

19 in stock

$15.24 × 1$15.24

Sold by Riley SalesShips in 2 days

BlueAir Supply is an authorized distributor, as such all factory warranties are supported and honored in conjunction with your order. Thank you for your business.

Information

About Us
Product Categories

Help

BlueAir Privacy Policy
Terms of Service
Return Policy
Shipping Policy

Headquarters

1719 Romano Drive

Plymouth Meeting, PA 19462

United States

© 2026 BlueAir Supply. All rights reserved.