UPONOR Barbed Fitting Adapter: 2 in ID x 2 in Pipe Size, Barbed x Cup, Brass/Copper
The UPONOR Barbed Fitting Adapter (MPN LF4512020) is an expansion brass barbed tube fitting with a 2 in ID x 2 in Pipe Size, featuring a Barbed x Cup connection type and a PEX connection method of Expansion. 3G…
SKU 3G-OTH-468079
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Product Description
The UPONOR Barbed Fitting Adapter (MPN LF4512020) is an expansion brass barbed tube fitting with a 2 in ID x 2 in Pipe Size, featuring a Barbed x Cup connection type and a PEX connection method of Expansion. 3G Electric interprets customer demand and delivers this genuine industrial fitting across 14 departments—and far more—with specialist depth in combustion, pumps and controls as a trust anchor, not a limit.
Frequently Asked Questions
What is the UPONOR Barbed Fitting Adapter LF4512020 used for?
The UPONOR Barbed Fitting Adapter LF4512020 connects PEX tubing to copper or brass piping systems in hydronic heating, plumbing, and radiant floor installations. Its barbed x cup design and expansion PEX connection method provide a secure, leak-resistant joint for 2-inch pipe sizes.
What are the specifications of the UPONOR LF4512020?
The UPONOR LF4512020 is a barbed fitting adapter with a 2 in ID x 2 in Pipe Size, barbed x cup connection, and brass/copper construction. It uses the expansion PEX connection method. The manufacturer part number is LF4512020.
Where to buy the UPONOR LF4512020 worldwide?
3G Electric supplies the genuine UPONOR LF4512020 barbed fitting adapter to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order this expansion brass fitting for your industrial or commercial project.
How to install the UPONOR expansion barbed fitting?
Install the UPONOR expansion barbed fitting by first expanding the PEX tube end with an expansion tool, then inserting the barbed adapter fully. The cup connection accepts a mating copper or brass pipe. Follow standard PEX expansion practices for a secure, permanent joint.
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Common applications for UPONORUPONOR Products
3G Electric supplies UPONOR expansion brass 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 Adapter: 1 in ID x 1 in Pipe Size, Barbed x Press-fit, Brass/Copper, Expansion (MPN LFP4501010). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Press-fit.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fd3ff0cb5-7357-45ea-9c08-d1598deab5ae.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 3/4 in ID x 3/4 in Pipe Size, Barbed x Press-fit, Brass/Copper (MPN LFP4517575). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Press-fit.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fd35b3511-1155-4477-8ff4-e0df462653e8.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 2 in ID x 2 in Pipe Size, Barbed, Brass, Expansion (MPN CP4512020). 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%2Fd111a962-8b56-49e0-8ba0-f38745b71f0b.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 3/4 in ID x 1 in Pipe Size, Barbed x NPT, Brass, Expansion (MPN LF4577510). 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%2Fd01a3668-c171-40ca-b95d-d926c3742e1f.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 2 in ID x 2 in Pipe Size, Barbed x NPT, Brass, Expansion (MPN LF4522020). 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%2Fc95802ac-153d-42d3-9287-a9679e6a59a0.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 2 in ID x 2 in Pipe Size, Barbed, Brass, Expansion (MPN CP4502020). 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%2Fc8dd4044-daa5-485f-8731-b3324e10ab96.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 2 in ID x 2 in Pipe Size, Barbed x Press-fit, Brass/Copper, Expansion (MPN LFP4512020). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Press-fit.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fc5aef166-d79e-4442-a909-841591c373be.jpg&w=200)
![UPONOR Barbed Fitting Adapter: 1 in ID x 1 in Pipe Size, Barbed x Cup, Brass/Copper, Expansion (MPN LF4511010). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Cup.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fc42793cc-53ad-48ba-8066-ac4bcf4cdf8d.jpg&w=200)