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Water Softener Air Gap with 3/8'', 1/2'' and 5/8'' Hose Inlet Ports with Adjustable Height for Floor Drain Cover (Safety Gaps Model Number: DC-225-400 White)

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$24.95

$ 11 .99 $11.99

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  • EASY DEVICE INSTALL: Four screws are included to mount air gap device securely to the top surface of a vented floor drain receptor cover
  • EASY HEIGHT ADJUSTMENT: The height is adjustable up to 4 inches and screws are included to secure the device at the desired height to hold the critical line on the device above the Flood Level Rim
  • EASY HOSE INSTALL: 3/8", 1/2" and 5/8" hose barbs molded directly into the assembly plus a port for a press-on fitting (sold separately) to receive a reverse osmosis discharge line
  • FLOW RATE: The DC-225-400 is recommended for combined flow rates up to 8 gallons per minute (GPM)
  • COLORS: Available in black or white


Safety Gaps Model DC-225-400 is the solution to variable flood level rim elevations. Use Safety Gaps for water softener, back-washing filter and reverse osmosis system installations when their discharge hoses terminate at a floor drain receptor. With applicable discharge hoses, a minimum 1.5" air gap must be maintained above the Flood Level Rim. Model DC-225-400 is adjustable to 4" and is recommended for flow rates up to 8 gpm. Check your local code.


Kevin Oberg
Reviewed in the United States on January 3, 2025
This helped me neatly tie my water softener, dehumidifer, and AC drain hoses to the floor drain in my utility room. It was easy to attach, the included hardware worked great, and the result (pictured) is significantly better than the zip-ties and wood scraps solution I've always used before. Admittedly, you can accomplish roughly the same thing for free, but this is a well-designed and more effective way to manage these hoses.Would definitely recommend this for anybody looking for something to manage their drain hose output.
Cory Torgesen
Reviewed in the United States on July 30, 2024
Water softener and to discharge
Brian scott
Reviewed in the United States on October 3, 2024
very useful air gap
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