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The RECTORSEAL 89713 is a PVC condensate drain adapter designed for use on air conditioner evaporator coil drain pans and condensate lines. Sized at 18 millimeters with a 3/8-inch pipe connection, this adapter provides a secure transition point in condensate drainage systems. The red color-coded finish allows technicians to quickly identify the correct adapter size during installation without measuring. HVAC technicians working on split systems, package units, and mini-splits install this type of adapter as part of routine coil cleaning, drain pan service, or system commissioning.
This adapter is suited for residential and light commercial air conditioning applications where condensate drainage must be properly routed to a drain point. The 18 MM sizing is a common coil drain port dimension found on many evaporator assemblies. Color-coding by size reduces the chance of selecting the wrong fitting when working from a parts kit, making it a practical addition to a field service bag.
Designed as an OEM-style replacement and service fitting for air conditioner condensate drainage applications requiring an 18 MM drain adapter connection.
This adapter is installed by licensed HVAC technicians as part of condensate drain system assembly or repair. Power down and disconnect the air conditioning unit before accessing the drain pan or evaporator compartment. Ensure the drain line is clear of blockages before seating the adapter to avoid back-pressure issues. Follow local mechanical codes and manufacturer guidelines for condensate disposal and drain line slope requirements.
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