Male Duct Couplings

Join ducting runs without losing your seal

Male Duct Couplings are simple fittings used to join two sections of flexible ducting, or to connect ducting onto a fan, filter or vent where a male spigot is needed. Each coupling gives a solid, round surface for a jubilee clip or duct clamp to grip, so the join stays airtight. A poorly joined section is a common cause of lost negative pressure, letting warm, humid air escape into the grow space instead of out through the filter - a properly clamped coupling keeps the whole run sealed and your extraction consistent.

Key Benefits

• Secure joins between ducting lengths or onto fans and filters.
• Solid clamping surface for a proper seal with a jubilee clip or duct clamp.
• Maintains negative pressure so odours and humid air leave through the filter, not the join.
• Simple installation needing no tools beyond a clamp.

How to Use

• Slide the coupling into the end of your ducting.
• Secure it with a duct clamp or jubilee clip.
• Connect the other side to your fan, filter or the next length of ducting and clamp that too.
• Check the run is airtight along its length before running the fan.