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400016 is the manufacturer's specific part number for the Catch-All C-032-F liquid line drier
making it suitable for larger boiler configurations
Is the Slant Fin 410-508-000 compatible with LP or Natural Gas
Secure Seal: Threaded or snap-in geometry provides a reliable mechanical bond to the humidifier base
Industry best practices suggest monitoring the pressure drop across the filter
Watts 0881399 Air Gap 400016 is the manufacturer's specificThe Watts 0881399 Air Gap (model 909 AG A) is a heavy duty, cast iron drainage fitting specifically engineered for Watts Series 909 RPZ backflow preventers within the " to 1" and 1 " to 2" size ranges. This genuine OEM component facilitates the physical separation required by plumbing codes between the relief valve discharge port and the drain line. By creating a visible, vertical air gap, it prevents cross contamination and back siphonage in the