Abstract: A coupler includes a tubular wall having a flange end and a free end, an annular flange extending radially outwardly from the flange end, and a plurality of retaining barbs extending outwardly from the free end. A plurality of latch assemblies are at the flange end. The latch assemblies are configured to releasably secure the flange to an adjacent member. Each of the latch assemblies comprises an inner latch pivotally attached to an outer latch. The outer latch is engageable with the flange of the coupler and the inner latch is engageable with a flange on an adjacent component.

Abstract: A collar for connecting ducting components is provided. The collar includes a tubular wall having a line end and a free end, an annular flange extending radially outwardly from the line end, and a plurality of retaining tabs extending outwardly from the free end. A plurality of locking members are provided at the line end. The locking members are configured to releasably secure the flange to an adjacent member.

Abstract: A collar for connecting ducting components is provided. The collar includes a tubular wall having a line end and a free end, an annular flange extending radially outwardly from the line end, and a plurality of retaining tabs extending outwardly from the free end. A plurality of locking members are provided at the line end. The locking members are configured to releasably secure the flange to an adjacent member.