Gastite XR3 3/4″ CSST Tee FlashShield Fitting MFG XR3T-11 Gas Line

SKU: XR3T-11

Weight	2 lbs
Dimensions	8 × 8 × 8 in

$127.44

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$127.44	0%
5–9	$121.07	5%
10+	$114.70	10%

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Gastite XR3 3/4" CSST Tee FlashShield Fitting MFG XR3T-11 Gas Line

Specifications & product details

REGIONS SUPPLY BUYING GUIDE

Product details & buying advice

Build a CSST order around one identified tubing system and generation, then select the fittings intended for it.

Product type	Gastite / FlashShield CSST systems
Part / SKU	XR3T-11
Run end 1	3/4 in. CSST
Run end 2	3/4 in. CSST
Branch	3/4 in. CSST
Model family reference	XR3T-11-12 (part-family identification only; the quantity supplied is the quantity stated in this listing)

What to check before ordering

Identify Gastite, original FlashShield or FlashShield+ tubing before choosing the fitting series.
Use the current system instructions and local requirements to plan sizing, supports, protection, terminations and bonding.
Have a trained installer follow the preparation method for that tubing generation.

Service reminder: Original FlashShield and FlashShield+ use different preparation details. Do not assume another brand’s CSST fittings are interchangeable.

Have gas-system installation and service completed by qualified personnel. Use the current instructions for the exact model and the requirements that apply at the installation location.

Product help & manufacturer resources

Gastite / FlashShield design and installation guide

Explore this product guide · Shop this product group · Ask Regions Supply about this part

Overview

⭐ Gastite XR3 3/4" CSST Tee Fitting — FlashShield Lightning-Resistant Gas Piping CompatibleThe Gastite XR3 3/4" Tee is a premium brass connector designed for use with FlashShield multi-layer CSST gas piping systems. FlashShield’s unique conductive polymer jacket and internal metal mesh provide one of the most advanced lightning-resistant gas piping technologies available, eliminating additional bonding requirements and offering superior installation safety.

This XR3 Tee fitting enables a secure three-way branch connection within gas distribution layouts, making it ideal for residential and commercial propane, LP gas, and natural gas installations.🔧 Key Features

Precision-machined 3/4" brass Tee fitting

Compatible with FlashShield lightning-resistant CSSTDesigned for LP gas, propane, and natural gas systems

Meets certification requirements LC1024 and LC1027Tested against direct + indirect simulated lightning strikes

Supports easy routing and branching in complex layoutsFlexible, installer-friendly FlashShield CSST system integration💡 Use CaseCreating branch lines in a CSST gas routing system

Propane tank feed linesNatural gas manifold splits

Industrial and commercial gas distribution systemsNew installations or system upgrades requiring lightning-resistant CSST📦 Manufacturer Details

Brand: Gastite

Model: XR3 3/4" TeeManufacturer Number: MFG# XR3T-11DLP#: 13K031This OEM-quality XR3 Tee is a top choice for gas installers, plumbers, HVAC professionals, and contractors needing a dependable 3-way CSST connection in FlashShield-certified systems.

Product details

Part / SKU	XR3T-11

Package includes

Gastite XR3 3/4" CSST Tee FlashShield Fitting MFG XR3T-11 Gas Line

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

Compatibility & part-number help

Match the manufacturer part number and equipment model to the listing. Check connection sizes, fuel type, pressure or capacity, voltage and dimensions where applicable. A similar appearance or part number alone does not confirm compatibility.

For help, send a parts inquiry with the part number, equipment model, label photos and quantity. Manufacturer documents and item-specific information, when supplied, are in the product details above.

Shipping & availability

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