1 5/8" Tube Fittings | McMaster-Carr

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Copper Tube Size

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168 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Solder-Connect Fittings for Copper Tubing

Solder these fittings to tubing for a permanent, leak-tight connection. They are also known as sweat fittings.

Cleaned and Bagged Solder-Connect
Fittings for Copper Tubing

When cleanliness is crucial to your application, choose these fittings that are individually cleaned and bagged to prevent contamination.

Flow Stops for Copper Tubing

Use these temporary flow stops to block water from an area that's being soldered. Commonly used on copper tubing, they allow you to make repairs without waiting for your line to drain.

Brass Push-to-Connect Fittings for Copper Tubing

Choose these metal fittings when you need better durability than our plastic push-to-connect fittings.

Press-Connect Fittings for Copper Tubing

Crimp these fittings to copper tubing with a crimping tool for a leak-tight connection that doesn’t require heat or soldering. They are comparable to Viega ProPress fittings.

Crimping Tools for Press-Connect
Fittings for Copper Tubing

Create a leak-tight seal without using heat or solder. Slide copper tubing into a press-connect fitting and use these tools to crimp the connection.

Clamp-On Fittings for Copper Tubing

Use these fittings to make leak-resistant connections without threading or soldering. Slide them over tubing and turn the end nuts to compress the gasket.

30° Flared Fittings for Steel Tubing

Also known as JIS (Japanese Industrial Standard) fittings.

Flow-Control Valves

Check Valves with Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

On/Off Valves with Solder-Connect Fittings

Solder these valves to metal tubing for a permanent, leak-tight connection. Use with water, oil, air, inert gas, and steam.

Easy-Maintenance On/Off Valves
with Solder-Connect Fittings

Service these valves without cutting soldered connections. The three-piece bolted body can be disassembled inline for easy access to internal components. Use with water, oil, inert gas, and steam.

On/Off Valves with Press-Connect
Fittings for Drinking Water

For a permanent, leak-tight connection that doesn’t require heat or soldering, these valves have press-connect fittings that crimp to metal tubing. Install them with a press-connect crimping tool. These valves meet NSF/ANSI 61 for use in drinking water systems.

On/Off Valves with Solder-Connect
Fittings for Drinking Water

Solder these valves to metal tubing for a permanent, leak-tight connection. They meet NSF/ANSI 61 for use with drinking water.

Gradual On/Off Valves with Solder-Connect Fittings

Solder these valves to copper tubing for a permanent, leak-tight connection.

Gradual On/Off Valves with
Press-Connect Fittings for Drinking Water

For a leak-tight connection in drinking water lines without heat or soldering, crimp the fittings on these valves to metal tubing with a press-connect crimping tool. They open and close gradually with multiple turns of the handle wheel to prevent jolts from sudden stops and starts.

Gradual On/Off Valves with Press-Connect Fittings

For a leak-tight connection, crimp the press-connect fittings on these valves to metal tubing with a crimping tool—no heat or soldering required. They open and close gradually as the wheel handle turns, preventing sudden starts and stops of flow.