The VH Reducer for fittings reduces fittings from a large to a small diameter. The large end of the VH Reducer fits over a fitting and the smallest fits into a Spiralo duct. This allows another large fitting of the same diameter to be installed directly onto the reducer.

This fitting has a KEN-LOK rubber seal with double lip (Soft-Edge) at the end of one spigot, so it can slide easily into a Spiralo duct.