This is the standard return grill and reducer for a Brivis gas fired ducted central heat system. This didn't fit the location I had to use when installing my unit, so I had to make a custom one. Surplus to requirements.

Grill measurements:

Will fit a hole;

405mm wide 765mm high

Reducer measurements:

400mm wide 760mm high (obviously fits inside the above measurement for the wall grill). 350mm diameter reduction face 375mm deep from the front face to the deepest point (the top of the 350mm diameter reduction face)

Hopefully these measurements make sense. If you are looking at this chances are you know what it is anyway.

Pick up only, New Plymouth