3" Rubber Union Coupling


$17.95 flat rate S&H total per parts order no matter how many items you order*. Usually ships within 5-7 days.

This 3" Rubber Union Coupling is used on Envirolet® Waterless Self-Contained Systems to allow for easier vent disconnection.

Vent disconnection is necessary if you want to service the electrical box or move the System to a new location.

Made out of heavy duty rubber and dual stainless steel clamps to ensure a proper seal of vent connection.


  • 3"
  • Black rubber with stainless steel gear clamps

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