UPONOR Barbed Fitting Adapter: 1 in ID x 1 1/4 in Pipe Size, Barbed x NPSM, Polymer
The UPONOR Barbed Fitting Adapter (MPN WS4361000) is an expansion polymer barbed tube fitting with a 1 in ID and 1 1/4 in pipe size, featuring a Barbed x NPSM connection type and an expansion PEX connection method.
SKU 3G-OTH-474043
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Product Description
The UPONOR Barbed Fitting Adapter (MPN WS4361000) is an expansion polymer barbed tube fitting with a 1 in ID and 1 1/4 in pipe size, featuring a Barbed x NPSM connection type and an expansion PEX connection method.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the UPONOR Barbed Fitting Adapter WS4361000 used for?
The UPONOR Barbed Fitting Adapter WS4361000 connects 1 in ID PEX tubing to 1 1/4 in NPSM threaded ports in plumbing and hydronic heating systems. Its expansion PEX connection method provides a secure, leak-resistant joint for potable water and radiant heating applications.
What are the specifications of the UPONOR Barbed Fitting Adapter WS4361000?
The UPONOR Barbed Fitting Adapter WS4361000 has a 1 in inside diameter, fits 1 1/4 in pipe size, and uses a Barbed x NPSM connection type. It is made of polymer and employs an expansion PEX connection method. The manufacturer part number is WS4361000.
Where to buy the UPONOR Barbed Fitting Adapter WS4361000 worldwide?
3G Electric supplies the UPONOR Barbed Fitting Adapter WS4361000 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this expansion polymer barbed fitting.
How to install the UPONOR Barbed Fitting Adapter WS4361000?
Install the UPONOR Barbed Fitting Adapter WS4361000 by expanding the PEX tube end with an expansion tool, then inserting the barbed fitting before the tube contracts. Ensure the NPSM thread is sealed with appropriate tape or compound. Follow UPONOR's instructions for proper expansion depth.
Used in
Common applications for UPONORUPONOR Products
3G Electric supplies UPONOR expansion polymer 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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