• The HG Story
• Benefits

• Standard Unit (HG-1)
• Direct Discharge Unit (HG-2)
• Longneck Standard (HG-3)
• Longneck Subsurface (HG-4)
• Vertical Units (HG-5)
• Basic Unit (HG-1-B)
• Hydrant Flushing Unit (HG-6)
• Accessories

The Hydro-Guard® HG-4 Longneck Subsurface Discharge Unit

The HG-4 Longneck Subsurface Discharge Unit, designed for severe freezing climates, is available in 3-foot, 5-foot and 7-foot bury depths with custom lengths available. It allows you to locate the working components below the frost line. Above ground, the housing is identical to that of the Direct Discharge Unit and can be locked for security. A programming outlet is available at ground level for easy access. All mechanical components, though located below frost depth, may be easily accessed using a patented cam-lock release system.

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• Naples, FL
• Clayton County
• Client List

• Selecting Your
  Hydro-Guard Unit
• Specifications
• Abstract
• Owner's Manual
• Programming
• Freeze Protection
• Calculate Your
  Flush Duration
• Flow Rate Graph

• Cost Savings
• FAQ
• Presentation