UPONOR Barbed Tee: 1 1/2 in ID x 1 1/4 in ID x 1 in ID Size
The UPONOR Barbed Tee is an expansion polymer barbed tube fitting with a 1 1/2 in ID x 1 1/4 in ID x 1 in ID size, featuring a Barbed x Barbed x Barbed x Barbed connection type and PEX connection method of Expansion…
SKU 3G-OTH-474026
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Product Description
The UPONOR Barbed Tee is an expansion polymer barbed tube fitting with a 1 1/2 in ID x 1 1/4 in ID x 1 in ID size, featuring a Barbed x Barbed x Barbed x Barbed connection type and PEX connection method of Expansion (MPN Q4751531).
Frequently Asked Questions
What is the UPONOR Barbed Tee used for?
The UPONOR Barbed Tee is used to branch or split PEX tubing in hydronic heating, radiant floor, and potable water systems. Its barbed connections secure tubing without additional clamps, and the expansion method ensures a reliable, leak-resistant joint in residential and commercial plumbing applications.
What are the specifications of the UPONOR Barbed Tee Q4751531?
The UPONOR Barbed Tee (MPN Q4751531) has a 1 1/2 in ID x 1 1/4 in ID x 1 in ID size with Barbed x Barbed x Barbed x Barbed connections. It uses the Expansion PEX connection method and is made from expansion polymer. This fitting is designed for use with UPONOR PEX tubing.
Where to buy the UPONOR Barbed Tee worldwide?
3G Electric supplies the UPONOR Barbed Tee Q4751531 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this expansion polymer barbed tube fitting.
How to install the UPONOR Barbed Tee with expansion method?
To install the UPONOR Barbed Tee, cut the PEX tubing square, slide an expansion ring over the tube end, then use an expansion tool to expand the ring and tubing. Immediately insert the barbed fitting and allow the ring to contract for a secure seal. Follow UPONOR guidelines for proper depth and tool settings.
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: 2 in ID x 2 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4752210). 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%2Fc5bc84ba-fbcf-40aa-bd9e-ea758a1b2681.jpg&w=200)
![UPONOR Barbed Tee: 2 1/2 in ID x 2 1/2 in ID x 1 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752510). 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%2Fc411b90b-296e-497a-bed0-f81ec4be46ae.jpg&w=200)
![UPONOR Barbed Tee: 2 in ID x 2 in ID x 1 1/4 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4752213). 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%2Fc06d416b-6ca5-4c0d-8334-14cae41c1ccc.jpg&w=200)
![UPONOR Barbed Tee: 1 in ID x 3/4 in ID x 1/2 in ID Size, Barbed x Barbed x Barbed x Barbed, Polymer (MPN Q4751750). 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%2Fbe43b5e9-09b8-471c-9330-0c903658302f.jpg&w=200)
![UPONOR Barbed Fitting Plug: 1/2 in ID Size, Barbed, Polymer, Expansion (MPN Q4350500). 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%2Fb60e6535-ca60-4747-9e33-74df7b2a6534.jpg&w=200)
![UPONOR Barbed Fitting Elbow: 3 in ID x 3 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4763000). 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%2Fb2353b9a-a115-419d-8ffc-328399b2a775.jpg&w=200)
![UPONOR Barbed Fitting Coupling: 2 in ID x 2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4772020). 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%2Fb20a1493-f316-456f-9476-0bb6294f4dd3.jpg&w=200)