HSS1S06140 Spiral Coupling, 18″, 26 Gauge, 5351 Seri (...)

The ADP 5351.18-26 is a 5351 Series spiral coupling designed for joining sections of spiral duct in HVAC systems. Measuring 18″ in diameter and manufactured from 26 gauge galvanized steel, this coupling is slightly undersized to fit securely inside spiral pipe for easy installation. A center bead provides added rigidity and ensures proper alignment during connection. Built for durability and airflow integrity, the 5351.18-26 spiral coupling delivers dependable service in commercial, industrial, and residential duct systems.

18″ spiral coupling, 26 ga galvanized steel, undersized to fit inside spiral pipe with center bead reinforcement.

Manufacturer: AIR DUCT PRODUCTS

Product Features

• 18″ spiral coupling for duct connections
• Manufactured from 26 ga galvanized steel
• Undersized design ensures secure fit inside spiral pipe
• Center bead provides rigidity and alignment
• Part of the ADP 5351 Series spiral fittings
• Built for durability and long service life in HVAC systems

Product Attributes

Availability