3PVP-X4AD 3" X 4" APPL ADPT/INCREASER is a duct increaser/reducer. In plain language, it is used to adapt ductwork from one diameter or size to another. This item belongs to Vent Pipe And Fittings, so it should be selected by matching the listed model, size, and application to the job requirements.

Purpose: Used to adapt ductwork from one diameter or size to another. Where it is used: Used where two duct sections of different sizes need to connect. How it is used: Matched to the two duct sizes listed in the product name and installed between those duct sections.

Key features: Adapts between two duct sizes Dimensions/weight: not specified in the available source data; weight not specified in the available source data. Note: Installation requirements and compatibility should be confirmed with manufacturer documentation or a qualified HVAC/R technician.