Plumbing Fittings | McMaster-Carr

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25,121 Products

Fluid Handling

Pipe and Pipe Fittings

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

7,923 products

Tube Fittings

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

8,657 products

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

171 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

23 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

64 products

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

251 products

Tube Fitting Sleeve and Nut Kits

Everything you need to create a tight seal between a metal tube and a Yor-Lok fitting

31 products

Hose Fittings

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

2,890 products

Hose

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

32 products

Hose Nozzles

Control flow while dispensing water, fuel, hydraulic fluid, coolant, and chemicals

2 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

1 product

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

5 products

On-Off Valves

Start and stop flow through a line

3,437 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

5 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

2 products

Filter Housings

Use with filter cartridges to remove particles from liquid

58 products

Facility and Grounds Maintenance

Sink Drain Traps

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

24 products

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

29 products

Sink Drain Trap Extension Tubing

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

8 products

Sink Drains

Empty liquids from sinks into sewer lines

47 products

Sink Drain Fitting Washers

Replace the washers in sink drain fittings

6 products

Dual-Connection Sink Drain Outlets

Connect two drains to a single outlet

7 products

Sink Drain Tailpieces

Connect drains to P-traps and S-traps

17 products

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

5 products

Faucet Sprayers

Extend the reach of your faucet with these flexible sprayers

1 product

Faucet Washers

Seal faucet components so they don’t leak

24 products

Faucet Spouts

Deliver drinking water from sinks

4 products

Faucet Shut-Off Rods

Nudge the rod to turn water on and release to turn off without touching handles

2 products

Faucet Cartridges

Replace the cartridges in common faucet brands; also known as stems

71 products

Faucet Spout Thread Adapters

Connect the female end of your garden hose to a faucet spout

4 products

Faucet Aerators

Reduce water use and noise while creating a smooth, powerful spray

26 products

Faucet Pedals

Start and stop water with your foot or knee to keep your hands free

15 products

Faucet Handles

Fit most faucet cartridges to turn water on and off

6 products

Faucet Repair Parts

Replace faucet parts such as valves, O-rings, washers, and nuts

82 products

Floor, Wall, and Ceiling Plates

Add a finishing touch around protruding pipes; also known as escutcheons

46 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Riser Tubes

Connect shut-off valves to sink faucets and toilet tanks

6 products

Floor Drain Trap Seals

Stop sewer gases from escaping through rarely used floor drains if the P-trap dries out

4 products

Glassware Rinsers

Rinse the inside of glasses, tubes, or beakers with a simple press

2 products

Air Admittance Valves

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

2 products

Grease Traps

Remove and retain grease from waste water to prevent blockages in plumbing lines

4 products

Sink Pipe Covers

Prevent burns from hot water pipes

3 products

Sediment Traps

Catch debris in pipelines before it enters your sewage system or water heater

4 products

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

50 products

Safety Equipment

Fire Hydrants

Fight fires in areas around your facility that city-installed hydrants don’t reach

4 products

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

3 products

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

6 products

Fire Post Indicators

Open and close water supply valves for fire systems buried underground or in a wall

2 products

Power Transmission

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products