atures _______________________

            1.  Be available in there neck sizes:200mm, 250mm, 300mm diameter.

         2.  The neck adaptors are constructed from polypropylene. 

            3.  The neck adaptors aie available for  Neck Adaptor for Plastic A.B.S.

               Multi Directional square 4 way Adjustable duct air Outlet for HVAC or

              ventilation system          

         4. corresponding to different duct sizes.