Rheia™ 3" Threaded Duct Ferrule | Part #10-01-010

A Near Air-Tight Duct Seal in One Twist — No Tape, No Mastic

The Rheia™ 3" Ferrule is the fitting that turns a raw duct end into a finished, sealed connection. Its patent-pending threaded design twists directly into the end of 3" flexible air duct, gripping the duct wall and forming a near air-tight seal that will not loosen, sag, or degrade the way taped joints do over time.

Once seated, the ferrule connects straight into boots, couplers, elbows, and take-offs, making it the universal handshake between duct and every other component in the run. It is molded from a flame-retardant PC/ABS engineering thermoplastic, rated UL94 V-0, UL 181C listed, and UL 2043 rated for air-handling spaces, and it is 100% recyclable.

Key Features

Patent-Pending Threaded Design — Twists into the end of 3" flexible duct to create a near air-tight seal without tape or mastic.

Universal Component Connection — Mates directly with boots, couplers, elbows, and take-offs across the Rheia™ system.

Flame-Retardant Engineered Polymer — PC/ABS blend rated UL94 V-0 for use inside ceilings and wall cavities.

Plenum-Space Rated — UL 2043 tested for heat and visible smoke release in air-handling spaces.

100% Recyclable — Fully recyclable thermoplastic construction.

Technical Specifications

Part Number: 10-01-010

Duct Compatibility: 3" diameter flexible air duct

Connection Type: Patent-pending threaded twist-in

Material: Flame-retardant PC/ABS blend

Flame Rating: UL94 V-0

Certifications: UL 181C Non-Metal Joining Accessories for Flexible Air Ducts (File MH64419), UL 2043 (ETL Control #5016806)

Recyclability: 100% recyclable

Warranty: 2-year limited warranty

What's in the Box

(1) Rheia™ 3" Threaded Duct Ferrule