1 5/8" Tube Adapters | McMaster-Carr

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Copper Tube Size

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133 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.

Medium-Pressure Pipe Fittings
for Joining Dissimilar Metals

Use these unions to connect different metals in a piping or plumbing system. They have a gasket with a plastic sleeve that inhibits destructive corrosion.

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.

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.

Brass Push-to-Connect Fittings for Copper Tubing

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

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.

On/Off Valves with Press-Connect Fittings

Crimp these valves to metal tubing for a permanent, leak-tight connection that doesn’t require heat or soldering.

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 copper tubing. Install them with a press-connect crimping tool. These valves meet NSF/ANSI 61 for use in drinking water systems.