MECCANIXITY Straight Copper Coupling Fittings, 1/4 Inch ID Welding Joint for HVAC Air Conditioner, with Rolled Tube Stop Sweat Ends, Pack of 5 - Amazon.com
5 x 3" PVC Duct Reducer Coupling 1034-RC-0503
5 in x 5 in Fitting Pipe Size, Schedule 40, Coupling - 22FM15|429050 - Grainger
VXB Brand Japan MJC-65CS-ERD 5/8 inch to 1 1/4 inch Jaw-Type Flexible Coupling Coupling Bore 2 Diameter:1 1/4 inch Coupling Length: 90 Coupling Outer Diameter:65: Amazon.com: Industrial & Scientific
Camlock DN 120 (5'') Stainless Steel Coupling R 5'' Male Thread Type B MIL-C-27487 | Tameson.com
Eastman 5 Inch Long Pattern Compression Coupling, 1 Inch IPS x 1-1/4 Inch CTS, Brass Plumbing Fitting, 20547LF - Amazon.com
Z-COUPLING-501 Silicone Coupler 5 in Diameter 1 inch length
Campbell Approved Supplier E940P 5 Inch Socket PVC Conduit Coupling
Pipe Fittings Direct. 5 inch NPT weld on mechant steel half coupling, Class 150, Internal Thread X Butt Weld
Exhaust Coupler 5 inch ID-ID Aluminized 8" Long CP-58A