Extension Fittings | McMaster-Carr

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Tube ID

27,957 Products

Fluid Handling

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

8,750 products

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

2 products

Pipe Traps

Create a seal that prevents the backflow of gas

6 products

Pipe Stub Ends

Connect a pipe flange to a pipe without needing to weld it in place

139 products

Tube Fittings

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

10,091 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

4,519 products

Manual On-Off Valves

Start and stop flow through a line

12 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

3,611 products

Binding Barrel Extensions

Add length to a binding barrel

113 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

190 products

Lubricating

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

27 products

Grease Gun Couplers

Extend the dispensing tip on grease guns to lubricate angled and hard-to-reach areas

6 products

Fabricating and Machining

Countersink Extensions

Lengthen the reach of threaded-shank countersinks

3 products

Material Handling

Valve Stem Extensions

Add length to the stem of tire valves

1 product

Facility and Grounds Maintenance

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

2 products

Sink Drain Trap Extension Tubing

Add to a drain tailpiece when it doesn’t reach the trap

8 products

Sink Drain Traps

Retain a small amount of water to keep sewer gas from escaping

2 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Wash Gun Nozzle Extensions

Attach to your wash gun nozzle to clean places out of arm's reach

2 products

Pressure Washer Extension Wands

Connect to your pressure washer to spray down hard-to-reach areas

1 product