Use for stepping up or reducing down your duct size. Manufactured in galvanised steel. Rolled edges for extra strength (also maintains shape).

Use for stepping up or reducing down your duct size. Manufactured in galvanised steel. Rolled edges for extra strength (also maintains shape).

Use for stepping up or reducing down your duct size. Manufactured in galvanised steel. Rolled edges for extra strength (also maintains shape).

Use for stepping up or reducing down your duct size. Manufactured in galvanised steel. Rolled edges for extra strength (also maintains shape).

Pro-swirl Eliminate hot spots and high humidity zones with the ultimate air diffuser from Black Orchid.  Air circulation is a vital factor in achieving optimum environment and therefore greater results.   The Black Orchid Pro-swirl can be mounted directly to any Centri-flo fan. The aerodynamic design ensures airflow is evenly distributed throughout the grow environment to eliminate hot spots and high humidity zones, creating an ideal atmosphere for plants. 

Spigot plate adaptors allow for the creation of a spigot connection onto a normal flat surfacewhether it is horizonal, verticle or angled. These adaptors can be secured by screw, rivet or nut and bolts onto any flat surface. They have a flat square backing with a round spigot for connection to flexible ducting or rigid spiral ducting .

Spigot plate adaptors allow for the creation of a spigot connection onto a normal flat surfacewhether it is horizonal, verticle or angled. These adaptors can be secured by screw, rivet or nut and bolts onto any flat surface. They have a flat square backing with a round spigot for connection to flexible ducting or rigid spiral ducting .

The Metal In Line Fan Spigot is made from tough galvanised steel and is for the connection of round flexible air ducts, as well as wall or ceiling mounting with screws. The In Line Fan Spigot comes in a variety of sizes enabling you to get one that fits your ducts, may they be big or small.

4" - 8" jubilee clip

For quick connection of spigotted fans to circular duct or accessories Galvanised steel circular duct clamp with foam lining

For quick connection of spigotted fans to circular duct or accessories Galvanised steel circular duct clamp with foam lining

When your extraction system is turned off a back draft shutter is the perfect way to stop air escaping from your room. It will also prevent unwanted cold / hot air from coming back into the grow room when it is not wanted.  A Back draft shutter is a cylinder shaped piece of equipment with 2 centrally mounted flaps. The air produced by your duct fan will cause these flaps to open, however when the duct fan is turned off the flaps will shut meaning no air can come in from outside.