Mueller Streamline 17802514h Flex Duct 14in X 25ft R-8.0

Product Description

The MUELLER STREAMLINE 17802514h is a 14-inch diameter insulated flexible duct rated at R-8.0, designed for HVAC air distribution in residential and light commercial installations. Constructed with a double-ply black polyester core and wrapped in R-8.0 insulation with a gray outer jacket, this flex duct is built to reduce heat gain and loss across supply and return air runs. Each box contains a 25-foot length, giving installers enough run for most standard trunk-to-register connections without splicing. HVAC technicians and sheet metal installers use this product to connect air handlers, plenums, and duct boots in forced-air systems.

This flex duct is suited for HVAC venting applications in residential and light commercial forced-air systems. The 14-inch diameter accommodates high-volume supply or return trunk runs where larger airflow capacity is required. The boxed packaging keeps the duct coiled and protected during storage and transport on job sites. It is appropriate for use in attic, crawlspace, and conditioned-space installations where insulated flex duct meets local energy code requirements.

Key Features

• R-8.0 insulation value reduces thermal loss across supply and return runs
• Double-ply black polyester core provides structural integrity and airflow efficiency
• 14-inch diameter supports high-volume HVAC distribution runs
• 25-foot length per box minimizes splicing on longer runs
• Gray outer jacket suitable for standard HVAC installations
• Boxed packaging protects duct during job site storage and handling

Compatibility

Designed as an OEM-style replacement and new-installation flex duct for residential and light commercial HVAC forced-air distribution systems requiring 14-inch insulated flexible duct with R-8.0 insulation.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with SMACNA guidelines and applicable local mechanical codes. Power down the air handler and close the system before connecting or disconnecting duct sections. Support the duct at intervals per manufacturer and code recommendations to prevent sagging, which reduces airflow and system efficiency. Avoid sharp bends or compression of the inner core, as both increase static pressure and reduce system performance.

Technical Specifications

• Diameter: 14 inches
• Length: 25 feet
• Insulation Rating: R-8.0
• Core Type: Double Ply Black Polyester
• Material: Polyester
• Jacket Color: Gray
• Application: HVAC
• Type: Venting
• Package: Boxed

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 17802514h