WATTS RADIANT Barbed Fitting Coupling: 5/8 in ID x 5/8 in ID Size, Barbed x Barbed, Brass
The WATTS RADIANT Barbed Fitting Coupling (MPN PCCCA6K) is a brass crimp-on tube fitting with a 5/8 in ID x 5/8 in ID size and a Barbed x Barbed connection type. It uses a crimp PEX connection method, designed for…
SKU 3G-OTH-473723
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Product Description
The WATTS RADIANT Barbed Fitting Coupling (MPN PCCCA6K) is a brass crimp-on tube fitting with a 5/8 in ID x 5/8 in ID size and a Barbed x Barbed connection type. It uses a crimp PEX connection method, designed for joining PEX tubing in radiant heating and plumbing systems.
Frequently Asked Questions
What is a WATTS RADIANT Barbed Fitting Coupling used for?
This brass barbed coupling joins two lengths of 5/8 in ID PEX tubing in radiant heating and plumbing systems. The crimp connection creates a secure, leak-resistant joint for hot or cold water distribution in residential and commercial hydronic applications.
What are the specifications of the WATTS RADIANT PCCCA6K coupling?
The WATTS RADIANT PCCCA6K is a brass barbed coupling with 5/8 in ID x 5/8 in ID size and barbed x barbed connections. It uses a crimp PEX connection method and is manufactured by WATTS RADIANT. The part number is PCCCA6K.
Where to buy WATTS RADIANT barbed fittings worldwide?
3G Electric supplies WATTS RADIANT barbed fittings like the PCCCA6K coupling to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this brass crimp fitting.
How to install a WATTS RADIANT crimp barbed coupling?
Slide a crimp ring over the PEX tubing end, insert the barbed coupling fully into the tubing, then position the ring over the barb and use a crimp tool to compress it evenly. Always follow the manufacturer's instructions for proper tool calibration and joint testing.
WATTS RADIANT Products
3G Electric supplies WATTS RADIANT crimp-on brass barbed tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.


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