Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
UPONOR Barbed Fitting Coupling: 2 in ID x 2 in ID Size, Barbed x Barbed, Polymer - Expansion Polymer Barbed Tube Fittings
UPONORExpansion Polymer Barbed Tube Fittings

UPONOR Barbed Fitting Coupling: 2 in ID x 2 in ID Size, Barbed x Barbed, Polymer

The UPONOR Barbed Fitting Coupling (MPN Q4772020) is a polymer expansion-type barbed x barbed tube fitting with a 2 in ID x 2 in ID size, designed for PEX connections using the expansion method. 3G Electric…

SKU 3G-OTH-474120

Brand
UPONOR
Item
Barbed Fitting Coupling: 2 in ID x 2 in ID Size, Barbed x Barbed, Polymer
Category
Expansion Polymer Barbed Tube Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

UPONOR
Manufacturer Part Number
Q4772020
Type
Barbed x Barbed, Polymer, Expansion
Connection Type
Barbed x Barbed
[New] - PEX Connection Method
Expansion
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

UPONOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The UPONOR Barbed Fitting Coupling (MPN Q4772020) is a polymer expansion-type barbed x barbed tube fitting with a 2 in ID x 2 in ID size, designed for PEX connections using the expansion method. 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments — and far more — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is the UPONOR Barbed Fitting Coupling Q4772020 used for?

The UPONOR Barbed Fitting Coupling Q4772020 is used to join two PEX pipes of the same size in plumbing and hydronic heating systems. It connects 2 in ID PEX tubing using the expansion method, creating a secure, leak-resistant joint for potable water or radiant floor applications.

What are the specifications of the UPONOR Barbed Fitting Coupling Q4772020?

The UPONOR Barbed Fitting Coupling Q4772020 is a polymer expansion-type fitting with a 2 in ID x 2 in ID size. It features barbed x barbed connections and is designed for PEX expansion connections. The manufacturer part number is Q4772020.

Where to buy the UPONOR Barbed Fitting Coupling Q4772020 worldwide?

3G Electric supplies the genuine UPONOR Barbed Fitting Coupling Q4772020 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this expansion polymer fitting.

How to install the UPONOR Barbed Fitting Coupling Q4772020?

To install the UPONOR Barbed Fitting Coupling Q4772020, use an expansion tool to expand the PEX tube end, then insert the barbed fitting. The polymer material contracts around the barb for a tight seal. Follow standard PEX expansion procedures and local plumbing codes for best results.

Used in

Common applications for UPONOR
Hydronic heating systems — Uponor manual two-way ball valves for flow isolation in PEX-based radiant heating loops
Water meter installation — Uponor water meter brass ball valves with PEX x NPSM connections for utility metering points
Plumbing maintenance — Uponor tube cutter for PEX used in cutting pipe during repair or retrofitting of water supply lines
Commercial building water distribution — Uponor angle ball valves for space-saving connections in mechanical rooms
Industrial process water — Uponor brass ball valves rated to 250 psi for shut-off in non-potable water lines

UPONOR 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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from UPONOR

View all UPONOR parts →
UPONOR Barbed Tee: 2 in ID x 1 1/2 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752575). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.
UPONOR
UPONOR Barbed Tee: 2 in ID x 1 1/2 in ID x 3/4 in ID Size, Barbed x Barbed x Barbed x Barbed (MPN Q4752575). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed x Barbed x Barbed.
UPONOR Barbed Fitting Coupling: 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4772525). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed.
UPONOR
UPONOR Barbed Fitting Coupling: 2 1/2 in ID x 2 1/2 in ID Size, Barbed x Barbed, Polymer, Expansion (MPN Q4772525). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR; Connection Type: Barbed x Barbed.
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.
UPONOR
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.
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.
UPONOR
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.
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.
UPONOR
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.
UPONOR Barbed Fitting Plug: 1 in ID Size, Barbed, Polymer, Expansion (MPN Q4351000). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR.
UPONOR
UPONOR Barbed Fitting Plug: 1 in ID Size, Barbed, Polymer, Expansion (MPN Q4351000). Key specifications — [New] - PEX Connection Method: Expansion; Brand: UPONOR.
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.
UPONOR
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.
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.
UPONOR
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.