Custom built HydroFlame aerator adapter box is ideal for high and tight fitting joints. The aerator adapter box provides a recess on the under side of the slab for access to the fitting.

• Accepts 3-in and 4-in HydroFlame sleeves
• Works with PVC, ABS and no-hub cast iron
• Box is 3-1/2-in tall and works with 8-in or thicker concrete floors
• Ideal for Sovent and other high and tight fitting joint access