STREAMLINE Sweat Fitting Adapter: 5/8 in CTS x 3/8 in CTS, FTG x Cup, No Center Stop
SKU 3G-OTH-472619
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Frequently Asked Questions
What is a STREAMLINE sweat fitting adapter used for?
A STREAMLINE sweat fitting adapter connects copper tubing in plumbing and HVAC systems. This 5/8 in CTS x 3/8 in CTS FTG x Cup adapter joins different tube sizes without a center stop, using soldered joints for leak-free performance.
What are the specifications of the STREAMLINE W 01321 adapter?
The STREAMLINE W 01321 is a wrot copper sweat fitting adapter with FTG x Cup ends, no center stop. It connects 5/8 in CTS to 3/8 in CTS copper tubing. The manufacturer part number is W 01321, and it is designed for soldered installation.
Where to buy STREAMLINE sweat fitting adapters worldwide?
3G Electric supplies STREAMLINE sweat fitting adapters worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine STREAMLINE fittings to your facility, ensuring compliance with local plumbing codes.
How to install a STREAMLINE sweat fitting adapter?
To install a STREAMLINE sweat fitting adapter, clean and flux the copper tube ends and fitting cup. Assemble the joint, then heat evenly with a torch until solder melts into the gap. Allow to cool naturally before pressure testing. Always follow local plumbing codes.
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3G Electric supplies STREAMLINE wrot copper tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









