CrownFLEX Gas Connectors are approved for following applications:

Indoor/Outdoor Applications

  • Residential Dryer Water Heaters
  • Residential Range
  • Gas Fireplace Logs
  • Space Heaters
  • Wall Heaters
  • Tankless Water Heaters
  • Furnace Forced Air Heaters
  • Rooftop Units

Manufactured Home Applications

  • Mobile Home Gas Meter
  • Cross-Over Gas Connections


American National Standards Institute & Canadian Standards Association Design Certificates

Connectors for Gas Appliances (ANSI Z21.24 CSA 6.10)

Connectors for Outdoor Gas Appliances & Manufactured Homes (ANSI Z21.75 CSA 6.27)


CrownFLEX Gas Connector

Our stainless steel gas connectors provide a safe and quick method to install residential appliances such as  water heaters, gas ranges, furnaces, water softeners, gas dryers and more.  CrownFLEX Gas Connectors are also available with a Yellow Polymer Coating that covers the entire length of the connector that provide protection against accidental contact with common household cleaning products, ammonia, chlorine, solder flux, and muriatic acids.  Coated connectors will also protect against UV rays and salt spray.


  • Flare Nut – Zinc Plated Steel
  • End Fitting Adapters – Zinc Platted Steel – Male Ends Tapped
  • Tube Construction – Type 304 Stainless Steel (Annealed)
  • Approved – Indoor/Outdoor Applications
  • Operating Temperatures with End Adapters: -40F to 150F
  • 100% Factory Leak Tested
  • CSA approvals stamped on flare nuts
  • BTU Chart printed on product tag for easy reference
Stainless SteelCoated Stainless Steel

CrownFLEX Whisper Free

Whisper free gas connectors are made from specially designed corrugated tubing to eliminate whistling noise at higher BTU gas flows with no decrease in flow when compared to standard flexible connectors.


  • Durable 304 Stainless Steel Construction
  • Designed and Engineered for High BTU Applications
  • Available High Temperature Black Coating
  • Zinc Coated End Fittings
  • Special Application for Gas Logs, Space Heaters and Free-Standing Fireplaces
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