A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Steel is stronger and more durable than other metals. Zinc-plated steel has fair corrosion resistance and should be used primarily in dry environments. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Nylon has good corrosion resistance, is nonmarring, and won’t scratch delicate surfaces. 303 stainless steel has very good corrosion resistance, so it’s the best choice for high-humidity environments.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. All Tru-Flate plugs are compatible with any of the Tru-Flate sockets of the same coupling size, regardless of the pipe size or barbed hose ID. They are also known as automotive couplings.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.

Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance, so it should be used primarily in dry environments. Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Nylon has good corrosion resistance, is nonmarring, and won’t scratch delicate surfaces.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Made entirely of acetal, these couplings are lighter in weight than metal quick-disconnect couplings. They are moisture resistant, so they won’t absorb water and lose strength, even in high-humidity environments. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Plastic-shape plugs are compatible with any of the Plastic-shape sockets, regardless of the pipe size.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air or water won’t leak from the line. They are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.

Plugs and sockets with a barbed connection insert into plastic or rubber hose and secure with a crimp-on hose ferrule.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. All ARO plugs are compatible with any of the ARO sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.

Sleeve-lock sockets connect by sliding back the sleeve on the socket, inserting the plug, and releasing the sleeve. To disconnect, slide the sleeve back and pull out the plug.

Push-to-connect sockets are easier to connect than sleeve-lock sockets. Connect by pushing the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.

Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Nickel-plated brass offers better corrosion resistance than unplated brass. 303 stainless steel has very good corrosion resistance, so it’s the best choice for high-humidity environments.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Schrader plugs are compatible with any of the Schrader sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line. They are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, twist the sleeve on the socket and pull out the plug. This twist-to-disconnect feature reduces the chance of accidental disconnection.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.

Aluminum is lighter in weight than other metals and has good corrosion resistance. 303 stainless steel has very good corrosion resistance, so it’s the best choice for high-humidity environments.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

A slim body allows these couplings to fit into tight spaces. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Compact plugs are compatible with any of the Compact sockets of the same coupling size, regardless of the pipe size or barbed hose ID.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line. They are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a crimp-on hose ferrule.

Brass is softer than zinc-plated steel, so it’s easier to thread together. It offers good corrosion resistance.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

With an unobstructed air path, these couplings have better airflow than other coupling shapes of the same size. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All European plugs are compatible with any of the European sockets, regardless of the pipe size or barbed hose ID. Made of zinc-plated steel, all are strong and durable, have fair corrosion resistance, and should be used primarily in noncorrosive environments.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line. They are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects. The sleeve is made of zinc-plated brass, which has better corrosion resistance than zinc-plated steel.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Couplings are color coded by shape so you can’t mix hose lines. Only plugs and sockets of the same color and coupling size will fit together. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. Plugs and sockets are brass and 303 stainless steel for good corrosion resistance.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so air or water won’t leak from the line. They are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.

Plugs and sockets with a barbed end insert into plastic or rubber hose and secure with a clamp or a crimp-on hose ferrule.

Note: To ensure a correct fit, make sure that the plug and socket have the same color and coupling size.