Special Cam & Groove fittings include reducing camlocks and expanding camlocks, double female camlocks and double male camlocks. 
C x A Female Cam x Male Cam 45 Degree Ductile Iron Elbow
C x A Female Cam x Male Cam 45 Degree Ductile Iron Elbow

Female Cam x Male Cam 45 Degree Ductile Iron Camlock ...

Aluminum Duckbill Spreader
Aluminum Duckbill Spreader

Female Cam Duckbill Spreaders

A Reducer - Reducing A Camlock Adapter
A Reducer - Reducing A Camlock Adapter

Male Camlock x Female NPT Thread Reducer/Expander "A" ...

B Reducer - Reducing B Coupler
B Reducer - Reducing B Coupler

Female Cam x Male NPT Thread Reducer/Expander Camlock "B" ...

C x A - Female Cam x Male Cam Reducer
C x A - Female Cam x Male Cam Reducer

Female Cam x Male Cam Reducer/Expander Camlock Coupler.

C x C - Female Cam x Female Cam Coupler
C x C - Female Cam x Female Cam Coupler

Female Camlock x Female Camlock Coupler

F Reducer - Reducing F Adapter
F Reducer - Reducing F Adapter

Male Cam x Male NPT Thread Reducer/Expander Camlock Adapter.

SA - Male Cam x Male Cam Spool Adapter
SA - Male Cam x Male Cam Spool Adapter

Male Camlock x Male Camlock Spool Adapter

PT STA LOK II Locking B Coupler
PT STA LOK II Locking B Coupler

Locking Female Camlock x Male NPT Thread B Coupler with ...