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Joining Collars & End Caps

Joining Collars are used to fit other ductwork components together.  End Caps are used to cap off ductwork.

NP's are used for joining spiral pipe together.
MF's are used for joining all other duct fittings.
EP's are used to cap ductwork off.

IL - Take Off Adaptor with Flange
IL - Round Take off adapter to suit Flat surface/ducting
NP Male Joining Collar
NP's are used to join two length of spiral duct together.
MF Female Joining Collar


MF's are used to join two small ended fitting together.
EP End Cap
EP - End caps are used to terminate a duct run.