Bellmouth (short radius) entries are designed to have smooth inlet radius and can be used to attach a round duct or flexhose to a flat surface, good for certain dust collection applications. Other sizes available from 14"-24", please call for pricing, allow 7-10 working days. 20 Gauge construction. Outside diameter is 1/16"-1/8" less than even inch.AHS Bellmouth Product Specs
Air Handling Starter Collars are ideal for attaching flexhose or pipe to a flat surface. 20 gauge construction. Outside diameter is 1/16 less than even inch.
