Air Flow Products RE1614 Reducer Increaser 16 to 14

Product Description

The AIR FLOW PRODUCTS RE1614 is a round duct reducer-increaser fitting designed to transition between 16-inch and 14-inch duct diameters in forced-air ventilation systems. This type of fitting is used to step duct sizes up or down along a trunk line or branch run, maintaining airflow continuity where duct sizing changes. The RE1614 is a standard sheet metal component installed by HVAC technicians during new construction ductwork layout or system modification. It is engineered to fit standard round duct sections and is identified by its 85-series designation.

The RE1614 is suited for residential and light commercial forced-air HVAC applications where a duct run must transition from a 16-inch diameter section to a 14-inch diameter section, or the reverse when used as an increaser. Typical install scenarios include trunk-line reductions, branch takeoff sizing changes, and equipment connection transitions. This fitting is appropriate for supply or return duct systems where round duct is specified.

Key Features

• Transitions between 16-inch and 14-inch round duct diameters
• Functions as both a reducer and an increaser depending on orientation
• 85-series fitting designation for standard duct system compatibility
• Designed for forced-air supply and return duct applications
• Compatible with standard round sheet metal duct connections

Compatibility

Designed as an OEM-style round duct fitting for residential and light commercial forced-air ventilation systems using standard 16-inch and 14-inch round duct sections.

Installation Notes

Installation should be performed by a qualified HVAC technician in accordance with applicable mechanical codes, including SMACNA duct construction standards. The system should be fully powered down and the air handler shut off before modifying any duct section. Secure the fitting with sheet metal screws and seal all joints with UL-listed duct mastic or metal-foil tape to prevent air leakage. Avoid using standard cloth-backed duct tape, which is not rated for long-term duct sealing.

Technical Specifications

• Large End Diameter: 16 inches
• Small End Diameter: 14 inches
• Series: 85
• Fitting Type: Round Reducer-Increaser

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: RE1614