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Galvanised steel gasketed coupler, 18 in diameter, 42 in length, double-bolt ends

Ductmate

Ductmate Gasketed Coupler 18 in 24 GA 42 in hvac control

SKU CH-W1EP-GEJ74

Galvanised-steel gasketed coupler fits 18 in round duct, seals to 30 in w.g. without fasteners

  • Self-sealing gasket eliminates separate sealant
  • 24-gauge galvanised steel resists corrosion
  • Double-bolt design allows tool-free assembly
  • Rated for 30 in positive and negative pressure
  • 42-inch length covers long duct runs

Ductmate Gasketed Coupler 18 in

The Ductmate Gasketed Coupler connects 18 in diameter round duct, light-gauge tubing or hose in HVAC systems. Its self-sealing gasket and double-bolt design create a leak-resistant joint without separate fasteners. The coupler is built for professionals who need a reusable, tool-free connection that meets SMACNA standards.

24 GA galvanized steel with gasket seal

Galvanized 24 GA steel construction provides corrosion resistance and structural rigidity for the 42 in fitting length. The integrated gasket eliminates the need for tape or mastic, reducing installation time and material cost. Because the joint seals on contact, it can be disassembled and reused when system layouts change.

Double-bolt reusable mounting

Two captive bolts draw the coupling halves together, compressing the gasket evenly around the 18 in duct circumference. No screws, clamps or special tools are required, so a single technician can make or break the joint quickly. The coupler handles 30 in positive and negative pressure, making it suitable for supply and return runs in commercial and residential installations.

Highlights

  • Self-sealing gasket eliminates separate sealant
  • 24-gauge galvanised steel resists corrosion
  • Double-bolt design allows tool-free assembly
  • Rated for 30 in positive and negative pressure
  • 42-inch length covers long duct runs

Specifications

BrandDUCTMATE

Questions about this item

Will the galvanised coating on the 24 ga steel need re-coating after years in the air stream?

The 24 ga galvanised steel body is designed to resist corrosion inside the duct; no internal re-coating interval is published.

At what pressure does the SMACNA-rated joint reach its limit during continuous fan operation?

The assembly is rated to 30 in positive and 30 in negative static pressure under SMACNA standards.

How much heat does the metal coupler add to the airstream when the system runs all day?

The galvanised steel coupler adds negligible heat; its mass simply assumes the temperature of the moving air.

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