UPONOR Barbed Fitting Coupling: 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed
The UPONOR Barbed Fitting Coupling (MPN Q4772525) is an expansion polymer barbed tube fitting with a 2 1/2 in ID x 2 1/2 in ID size and a Barbed x Barbed connection type. It uses an expansion PEX connection method…
SKU 3G-OTH-474117
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Product Description
The UPONOR Barbed Fitting Coupling (MPN Q4772525) is an expansion polymer barbed tube fitting with a 2 1/2 in ID x 2 1/2 in ID size and a Barbed x Barbed connection type. It uses an expansion PEX connection method. 3G Electric sources this and thousands of other industrial components across 14 departments, with specialist expertise in combustion, pumps and controls.
Frequently Asked Questions
What is the UPONOR Barbed Fitting Coupling Q4772525 used for?
The UPONOR Barbed Fitting Coupling Q4772525 connects two 2 1/2 in ID PEX pipes in hydronic heating, plumbing, and radiant systems. Its barbed x barbed design and expansion method create a secure, leak-resistant joint. 3G Electric supplies this and thousands of other industrial components across 14 departments.
What are the specifications of the UPONOR Q4772525 coupling?
The UPONOR Q4772525 is a polymer expansion barbed tube coupling with a 2 1/2 in ID x 2 1/2 in ID size and barbed x barbed connection. It uses the expansion PEX connection method. 3G Electric sources this fitting alongside specialist expertise in combustion, pumps, and controls.
Where to buy the UPONOR Q4772525 coupling worldwide?
3G Electric supplies the UPONOR Q4772525 coupling to customers worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine components across 14 departments. Contact us for availability and delivery to your location.
How to install the UPONOR expansion barbed coupling?
Install the UPONOR Q4772525 by sliding an expansion ring onto the PEX pipe, expanding the pipe and ring with an expansion tool, then inserting the barbed coupling. The polymer contracts to form a tight seal. 3G Electric provides sourcing support for this and related fittings.
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: 3/4 in ID x 3/4 in ID x 5/8 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4757563). 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%2F180864bd-0daf-4a07-9db4-c540e5ce74ca.jpg&w=200)
![UPONOR Barbed Tee: 1 1/2 in ID x 1 1/2 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751557). 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%2F17c47989-6f8c-4c30-879e-cdc0a3ecc58a.jpg&w=200)
![UPONOR Barbed Tee: 3 in ID x 3 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4753313). 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%2F17a25a5b-69e3-4eaa-b32b-3a3f81f9e659.jpg&w=200)
![UPONOR Barbed Tee: 1 1/2 in ID x 1 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4751511). 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%2F160c1cf5-d125-428f-b46b-fa408a46b005.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 1 1/4 in ID x 3/4 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4771307). 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%2F15b72620-ec40-4a41-9b32-0998ab0546ea.jpg&w=200)
![UPONOR Barbed Tee: 1 1/4 in ID x 1 1/4 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751331). 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%2F14e075fe-61e4-484b-8110-b80ca6932d36.jpg&w=200)
![UPONOR Barbed Tee: 1 1/4 in ID x 3/4 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751373). 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%2F1413663b-4a95-4950-8dee-9e2fa5db5910.jpg&w=200)
![UPONOR Barbed Tee: 1 in ID x 1 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4751113). 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%2F135fe722-ed5b-4904-b9c7-a5270f33b7ff.jpg&w=200)