Never Freezes – Never “Dries” Out!
The Air-Trap™ allows liquid condensate to drain from the HVAC equipment and simultaneously prevents air from entering or escaping from the equipment.

Typically, HVAC equipment is fitted with “P” traps that require water, or another liquid, within a standpipe to prevent gas from entering or leaving the unit. As a result, the “P” traps are susceptible to freezing – expansion – bursting. At other times, the traps dry out allowing gas to escape or enter the HVAC equipment. The Air-Trap™ never requires addition of water to prevent unwanted air leakage.

FCN-Series: Residential / Lite Commercial Negative Pressure Waterless Trap

No More Troublesome “P” Traps

• The Air-Trap will never freeze and break
• No more issues caused by traps drying out
• Air-Trap is predesigned to prevent field errors
• Air-Trap reduces trap height by up to 60%
• Eliminates sludge build-up at bottom of “U” tube
• No more geysers when there is negative pressure
• Easy maintenance – use the side clips to open the Air-Trap for cleaning

The Air-Trap™ concept has been incorporated into IAPMO IGC 196-2018 Standard for Condensate Traps and Overflow Switches for Air-Conditioning Systems.