UPONOR Barbed Fitting Coupling: 3 in ID x 3 in ID Size, Barbed x Barbed, Polymer
The UPONOR Barbed Fitting Coupling (MPN Q4773030) is a 3 in ID x 3 in ID size expansion polymer barbed tube fitting with a Barbed x Barbed connection type. It uses an Expansion PEX connection method, as specified by…
SKU 3G-OTH-474151
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Product Description
The UPONOR Barbed Fitting Coupling (MPN Q4773030) is a 3 in ID x 3 in ID size expansion polymer barbed tube fitting with a Barbed x Barbed connection type. It uses an Expansion PEX connection method, as specified by the manufacturer.
Frequently Asked Questions
What is UPONOR Barbed Fitting Coupling Q4773030 used for?
The UPONOR Barbed Fitting Coupling Q4773030 connects two 3 in ID PEX pipes in expansion plumbing systems. It is used in residential and commercial hydronic heating, radiant floor heating, and potable water distribution where a reliable, leak-free polymer coupling is required.
What are the specifications of UPONOR Q4773030?
The UPONOR Q4773030 is a 3 in ID x 3 in ID barbed coupling made of polymer. It features a Barbed x Barbed connection type and uses the Expansion PEX connection method. The manufacturer part number is Q4773030, and the brand is UPONOR.
Where to buy UPONOR Q4773030 in worldwide?
3G Electric supplies the UPONOR Q4773030 barbed fitting coupling to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this expansion polymer coupling.
How to install UPONOR barbed fitting coupling?
Install the UPONOR barbed coupling by cutting the PEX pipe square, sliding an expansion ring over the pipe end, expanding the pipe and ring with an expansion tool, then inserting the barbed fitting. The polymer material contracts to form a tight seal. Follow UPONOR guidelines for proper expansion tool use.
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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 Fitting Elbow: 1 1/2 in ID x 1 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4761515). 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%2F564ee77f-c4a0-4986-8fbc-a4d5b0ce14f0.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 3/4 in ID x 1 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4777510). 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%2F563b3277-8391-4faf-9be5-e6a1808984fc.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 1/2 in ID x 1/2 in Pipe Size, Barbed x NPT, Polymer, Expansion (MPN Q4625050). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x NPT.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F55365f6e-c782-4744-9a3e-3505d00d3b30.jpg&w=200)
![UPONOR Barbed Fitting Elbow: 1/2 in ID x 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4760500). 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%2F54261582-9fe6-495f-852b-edd6566144c0.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 1 1/2 in ID x 1 1/4 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4771513). 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%2F50e29906-4a2b-4d62-833b-27dd0d26904f.jpg&w=200)
![UPONOR Barbed Tee: 3/4 in ID x 3/4 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4757710). 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%2F50092604-1812-4ce4-b146-ce3a570c71fe.jpg&w=200)
![UPONOR Barbed Tee: 3/4 in ID x 1/2 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4757557). 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%2F4f655d46-2833-4d66-aba8-8eea37e7ecc1.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 1 in ID x 1 1/4 in Pipe Size, Barbed x NPSM, Polymer, Expansion (MPN WS4361001). 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%2F4d993bb7-aa22-444a-8c7b-6aff16a8e1f1.jpg&w=200)