3/4 Pipe Adapters | McMaster-Carr

Filter by

Fitting Type

System of Measurement

Pipe Size

Material

Thread Type

Shape

Gender

Fitting Connection

Connects To

For Use With

Pipe Material

Pipe Schedule

Length

Flange Material

Body Shape

Maximum Pressure @ Temperature

Thread Size

Threading

Tube OD

Pressure Class

Hose ID

Color

USMCA Qualifying

How can we improve?

4,527 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

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

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

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Manifolds

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

Junction Blocks

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

On-Off Valves

Start and stop flow through a line

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Filter Housings

Filter Housings

Use with filter cartridges to remove particles from liquid

Filter Bags

Place in a filter bag housing to trap and remove particles from liquid

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Electrical

Conduit and Cord Grip Thread Adapters

Conduit and Cord Grip Thread Adapters

Connect to fittings and openings that have a different thread type

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Conduit-to-Conduit Connectors

Conduit-to-Conduit Connectors

Join pieces of conduit

Conduit Bodies

Access wiring to pull, splice, or redirect it

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

Fabricating and Machining

Pipe Threader Die Head Wrenches

Pipe Threader Die Head Wrenches

Pair with a Ridgid die head and dies to cut pipe and conduit threads

Pipe Threaders

Cut external threads in pipe and conduit with ratcheting action or electric power

Pipe Threader Dies

Pipe Threader Dies

Install in the die head on your Ridgid pipe threader to cut external pipe and conduit threads

Pipe Threader Die Heads

Pipe Threader Die Heads

Attach to your Ridgid ratcheting or electric threader to cut external pipe and conduit threads

Power Transmission

Air to Hydraulic Power Units

Air to Hydraulic Power Units

Power a hydraulic cylinder with air to avoid the setup, cost, and mess of hydraulic fluid

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