UPONOR Barbed Fitting Coupling: 1 1/2 in ID x 1 1/4 in ID Size, Barbed x Barbed
The UPONOR Barbed Fitting Coupling (MPN Q4771513) is an expansion polymer barbed tube fitting with a barbed x barbed connection, sized 1 1/2 in ID x 1 1/4 in ID. It uses an expansion PEX connection method. 3G…
SKU 3G-OTH-474191
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Product Description
The UPONOR Barbed Fitting Coupling (MPN Q4771513) is an expansion polymer barbed tube fitting with a barbed x barbed connection, sized 1 1/2 in ID x 1 1/4 in ID. It uses an expansion PEX connection method. 3G Electric sources this genuine UPONOR component across 14 industrial departments, with specialist expertise in combustion, pumps and controls to support your application.
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 Coupling Q4771513 used for?
The UPONOR Barbed Fitting Coupling Q4771513 connects two PEX pipes of different diameters (1 1/2 in ID to 1 1/4 in ID) in hydronic heating, plumbing, and radiant floor systems. Its expansion polymer construction provides a secure, leak-resistant joint. 3G Electric supplies this genuine UPONOR component for industrial applications worldwide.
What are the specifications of the UPONOR Q4771513 coupling?
The UPONOR Q4771513 is a barbed x barbed coupling made of polymer, sized 1 1/2 in ID x 1 1/4 in ID. It uses an expansion PEX connection method. The manufacturer part number is Q4771513. 3G Electric sources this fitting across 14 industrial departments, with specialist expertise in combustion, pumps and controls.
Where to buy UPONOR Q4771513 worldwide?
3G Electric supplies the UPONOR Q4771513 barbed fitting coupling to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to order this genuine UPONOR component for your PEX piping system.
How to install the UPONOR expansion PEX coupling?
Install the UPONOR Q4771513 coupling by expanding the PEX pipe end with an expansion tool, then inserting the barbed fitting before the pipe contracts. Ensure the pipe is fully seated against the fitting shoulder. 3G Electric provides technical support for this UPONOR component across industrial applications.
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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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![UPONOR Barbed Fitting Coupling: 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4772525). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fcf85fe5e-fee7-4b5d-9e61-23e7847623d4.jpg&w=200)
![UPONOR Barbed Tee: 1 1/2 in ID x 1 in ID x 1 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751505). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fce099728-41e6-4d21-857f-1dba866bc38c.jpg&w=200)
![UPONOR Barbed Tee: 1 1/4 in ID x 1 1/4 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751313). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fcc92924a-58a4-4c50-a9e7-5cc93df53469.jpg&w=200)
![UPONOR Barbed Tee: 1 in ID x 3/4 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4751751). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fcc444112-0184-40b0-99f5-03cfc5e33b6b.jpg&w=200)
![UPONOR Barbed Fitting Plug: 1 in ID Size, Barbed, Polymer, Expansion (MPN Q4351000). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fcc2ed3a7-b413-4733-b4d0-19bb35139537.jpg&w=200)
![UPONOR Barbed Tee: 2 1/2 in ID x 2 in ID x 1 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752525). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fcafefdf1-bd48-454e-9106-72f4ee49b15b.jpg&w=200)
![UPONOR Barbed Fitting Elbow: 2 in ID x 2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4762000). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fca6ebabb-30db-422d-8d01-d9d197feb6f7.jpg&w=200)