UPONOR Barbed Fitting Coupling: 2 1/2 in ID x 2 in ID Size, Barbed x Barbed, Polymer
The UPONOR Barbed Fitting Coupling (MPN Q4772520) is a polymer expansion-type barbed x barbed tube fitting designed for PEX connections. It accommodates 2 1/2 in ID x 2 in ID sizes and uses an expansion connection…
SKU 3G-OTH-474110
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Product Description
The UPONOR Barbed Fitting Coupling (MPN Q4772520) is a polymer expansion-type barbed x barbed tube fitting designed for PEX connections. It accommodates 2 1/2 in ID x 2 in ID sizes and uses an expansion connection method. 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is UPONOR Barbed Fitting Coupling Q4772520 used for?
The UPONOR Barbed Fitting Coupling Q4772520 is used to join PEX tubing in plumbing and radiant heating systems. Its barbed x barbed design with expansion connection method provides a secure, leak-resistant joint for 2 1/2 in ID x 2 in ID pipe sizes.
What are the specifications of UPONOR Q4772520?
The UPONOR Q4772520 is a polymer expansion-type barbed x barbed tube coupling. It fits 2 1/2 in ID x 2 in ID PEX tubing and uses an expansion connection method. The manufacturer part number is Q4772520, and the connection type is barbed x barbed.
Where to buy UPONOR Q4772520 worldwide?
3G Electric supplies the UPONOR Q4772520 barbed fitting coupling 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 system.
How to install UPONOR barbed fitting coupling?
To install the UPONOR barbed fitting coupling, first expand the PEX tube end using an expansion tool, then insert the barbed end fully. The polymer material contracts around the barb for a tight seal. Always follow manufacturer 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.


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![UPONOR Barbed Tee: 1 1/2 in ID x 1 1/4 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751531). 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%2F72c17990-5454-44a3-83f0-1e6de94cc898.jpg&w=200)
![UPONOR Barbed Tee: 1 1/2 in ID x 1 1/4 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751533). 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%2F6e2a8555-634a-4af3-b35c-e7c78d9f0d9e.jpg&w=200)
![UPONOR Barbed Tee: 2 in ID x 1 1/2 in ID x 1 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752055). 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%2F6d029792-e1f9-46f7-a706-bf3385d7f97a.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 1 in ID x 1 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4771010). 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%2F67abd646-0c29-4877-b9ef-99e94e23cb32.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 3/4 in ID x 1 in Pipe Size, Barbed x NPSM, Polymer, Expansion (MPN WS4360750). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x NPSM.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F65e2ad55-cd69-4f41-8249-efb8bb77cf74.jpg&w=200)
![UPONOR Barbed Fitting Elbow: 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4762500). 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%2F64d3ee53-ef87-4357-8ff6-42661735a980.jpg&w=200)
![UPONOR Barbed Tee: 1 1/2 in ID x 1 1/4 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4751537). 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%2F63725208-d81c-4800-9f19-60fb16976392.jpg&w=200)