Atco Rubber Products 050_10X25FT Flexible Air Duct 10 in 25 Ft

Product Description

The ATCO RUBBER PRODUCTS 050_10X25FT is a Class 1 flexible air duct rated for HVAC distribution systems in residential and light commercial applications. The duct measures 10 inches in diameter and comes in a 25-foot length, making it suitable for trunk-to-register runs and branch connections. Construction layers include a metalized polyester lamination, aluminum foil, and a polyester steel wire helix that holds the round profile under pressure. The duct handles air velocity up to 5000 FPM and carries a rated positive pressure of 6 inches WG per UL 181. Plain ends allow direct connection to standard fittings and collars without special adapters.

This flexible duct is used in forced-air systems where a semi-rigid or rigid duct run is not practical. Typical installs include attic and crawlspace distribution, equipment room branch runs, and retrofits where routing around obstructions is necessary. The non-insulated design is appropriate where duct wrap or external insulation will be applied separately, or where the duct runs through already-conditioned space. Temperature rating spans -20 to 180 degrees F, covering standard heating and cooling system operating ranges.

Key Features

• Rated positive pressure of 6 inches WG per UL 181 for secure operation under high static conditions
• Rated negative pressure of 3/4 inch WG per UL 181
• Maximum air velocity of 5000 FPM
• Encapsulated wire helix prevents unraveling when cut to length in the field
• Smooth inner core reduces friction loss and lowers system operating resistance
• Class 1 rating with maximum flame spread of 25 and maximum smoke developed of 50
• Lightweight construction compresses for compact storage and easy job-site handling

Compatibility

Designed as an OEM-style replacement and new-installation flexible air duct for Class 1 HVAC distribution systems. Listed to UL 181, NFPA 90A and 90B, SBCC, and BOCA standards.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with NFPA 90A, NFPA 90B, and applicable local mechanical codes. Power down the air handler and verify the system is de-energized before connecting or disconnecting any ductwork. Secure plain ends to collars and fittings using approved clamps and mastic or foil tape rated for duct use. Avoid sharp bends that exceed the duct's minimum bend radius, as kinking restricts airflow and can damage the inner core.

Technical Specifications

• Diameter: 10 inches
• Length: 25 feet
• Air Velocity Rating: 5000 FPM
• Rated Positive Pressure: 6 inches WG per UL 181
• Rated Negative Pressure: 3/4 inch WG per UL 181
• Temperature Rating: -20 to 180 degrees F
• Core Material: Metalized Polyester Lamination, Aluminum Foil, Polyester Steel Helix
• Insulation Type: Non-Insulated
• Duct Type: Class 1, Flexible, Plain End
• Flame Spread: Maximum 25
• Smoke Developed: Maximum 50
• Applicable Standards: UL 181, NFPA 90A and 90B, SBCC, BOCA

Standard Information

• Brand: ATCO RUBBER PRODUCTS
• Manufacturer Part Number: 050_10X25FT