Reducing Couplings | McMaster-Carr

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10,036 Products

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Nipples and Pipe

Pipe Nipples and Pipe

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Hose Nozzle Swivels

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Facility and Grounds Maintenance

Dust Collectors

Dust Collectors

Extract sawdust, chips, and other particles from the air and contain them for disposal

Vacuum Cleaner Hose Connectors

Vacuum Cleaner Hose Connectors

Link multiple vacuum hoses or attach hose to a central vacuum system

Power Transmission

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Lubricating

Coolant Dispenser Hose and Fittings

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)