UPONOR Barbed Fitting Coupling: 1/2 in ID x 1/2 in ID Size, Barbed x Barbed, Polymer
The UPONOR Barbed Fitting Coupling (MPN Q4775050) is a polymer expansion-type barbed x barbed tube fitting designed for 1/2 in ID x 1/2 in ID PEX connections. It uses an expansion connection method, making it…
SKU 3G-OTH-474107
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Product Description
The UPONOR Barbed Fitting Coupling (MPN Q4775050) is a polymer expansion-type barbed x barbed tube fitting designed for 1/2 in ID x 1/2 in ID PEX connections. It uses an expansion connection method, making it suitable for joining PEX tubing in plumbing and hydronic systems.
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 Q4775050 used for?
The UPONOR Barbed Fitting Coupling Q4775050 is used to join two 1/2 in ID PEX tubes in plumbing and hydronic systems. Its expansion connection method creates a secure, leak-resistant joint, making it suitable for potable water and radiant heating applications.
What are the specifications of the UPONOR Q4775050 coupling?
The UPONOR Q4775050 is a polymer barbed x barbed coupling for 1/2 in ID x 1/2 in ID PEX connections. It uses an expansion connection method. The fitting is made by UPONOR, part number Q4775050, and is designed for reliable joining in hydronic and plumbing systems.
Where to buy the UPONOR Q4775050 coupling worldwide?
3G Electric supplies the UPONOR Q4775050 coupling worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this expansion polymer fitting to your site. Contact us for availability and lead time.
How to install the UPONOR expansion barbed coupling?
To install the UPONOR expansion barbed coupling, expand the PEX tube end using an expansion tool, then insert the barbed fitting before the tube contracts. Ensure the tube is fully seated against the fitting shoulder. Follow UPONOR's guidelines for proper expansion and connection.
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.


![UPONOR Barbed Tee: 3 in ID x 2 1/2 in ID x 2 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4753252). 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%2Fa493afde-6d39-42d9-8364-00f3039f4f27.jpg&w=200)
![UPONOR Barbed Tee: 3/4 in ID x 3/4 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4757575). 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%2Fa37da8f6-8acd-4081-9778-ff93625aaf64.jpg&w=200)
![UPONOR Barbed Tee: 2 1/2 in ID x 2 1/2 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752513). 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%2Fa357245d-3a9a-45cd-a7c0-17c524052230.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 1 1/2 in ID x 3/4 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4771507). 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%2Fa094cf6f-c7d9-4d05-b969-dfa96c257ffa.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 3 in ID x 2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4773020). 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%2Fa0580928-f56c-448b-839e-9d63a2c8e154.jpg&w=200)
![UPONOR Barbed Tee: 2 1/2 in ID x 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752500). 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%2F9f6541f7-f811-4cf0-9aa1-5d5e4b693c51.jpg&w=200)
![UPONOR Barbed Tee: 2 in ID x 2 in ID x 1 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4752215). 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%2F9f4b0eaa-34fe-4764-9be0-58192bf894fa.jpg&w=200)
![UPONOR Barbed Tee: 1 1/4 in ID x 1 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751317). 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%2F9879854e-8a72-4af7-a449-54a0f58cbb98.jpg&w=200)