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The ET115 series universal water softener or water filter air gaps are designed to provide a convenient way to install an air gap into 1-1/2" standpipe drain. This air gap can be connected using a rigid PVC pipes or flex tubing with adapters. The unique design provides a completely protected air gap without any possibility of water splashing out. The inlet accommodates 1/2" threaded PVC pipes or adapters.

It is easy to use and legal to install in any state. The ET115 series air gap is listed by UPC and tested for compliance with IPC and NSF standards.

  • Provides easy connection to 1-1/2" standpipe
  • Splash guard assures completely dry operation
  • Can be pressure fit or glued to a standpipe
  • Recommended usage up to 15 gallons/minute
  • Legal to install in any state UPC® Listed, IPC® and NSF® tested
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Manuals (2)
Product Type:

Air Gap

Inlet Type:

1/2" NPT Schedule 40

Outlet Type:

1-1/2" Standpipe Drain

Width (Inches):


Height (Inches):





Water Filter

Water Softener




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