UPONOR Barbed Fitting Plug: 1 1/4 in ID Size, Barbed, Polymer
The UPONOR Barbed Fitting Plug (MPN Q4351250) is an expansion polymer barbed tube fitting with a 1 1/4 in ID size. It uses an expansion PEX connection method and is manufactured by UPONOR.
SKU 3G-OTH-474208
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Product Description
The UPONOR Barbed Fitting Plug (MPN Q4351250) is an expansion polymer barbed tube fitting with a 1 1/4 in ID size. It uses an expansion PEX connection method and is manufactured by UPONOR.
Frequently Asked Questions
What is the UPONOR Barbed Fitting Plug Q4351250 used for?
The UPONOR Barbed Fitting Plug Q4351250 is used to seal the end of a PEX expansion plumbing line. It is a polymer barbed plug with a 1 1/4 in ID size, designed for expansion PEX connection methods in residential and commercial hydronic systems.
What are the specifications of the UPONOR Q4351250?
The UPONOR Q4351250 is a barbed, polymer, expansion fitting plug. It has a 1 1/4 in ID size and uses an expansion PEX connection method. The manufacturer part number is Q4351250, and it is made by UPONOR.
Where to buy UPONOR Q4351250 in worldwide?
3G Electric supplies the UPONOR Q4351250 barbed fitting plug to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this expansion PEX plug.
How to install the UPONOR expansion PEX plug?
To install the UPONOR expansion PEX plug, use an expansion tool to expand the PEX tube and the plug end. Insert the plug fully into the expanded tube, then allow the material to contract and form a tight seal. Follow UPONOR's published instructions for best results.
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: 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)
![UPONOR Barbed Tee: 1/2 in ID x 1/2 in ID x 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4755050). 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%2Fc970e497-50b4-4e20-a6f5-7fd4fab178e8.jpg&w=200)
![UPONOR Barbed Fitting Plug: 1 1/2 in ID Size, Barbed, Polymer, Expansion (MPN Q4351500). 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%2Fc6c152b4-1014-42e5-88bf-a88aabbef386.jpg&w=200)