6 to 4 Inch Duct Reducer, Hon&Guan Duct Adapter 6 to 4 PVC Reducer, Duct Increaser/Reducer for Grow Tent HVAC Ventilation System. (150 to 100mm)
- 【6 Inch to 4 Inch Duct Reducer】: For connecting two ducting of different diameters or for connecting hose to inline fan/exhaust vent. Either flexible duct or rigid sheet metal ducts can be used and save you space..
- 【Size】: On one side there is a 150mm Female Spigot - Will fit into 6 inch ducting. Outer Diameter-6.18.