A:Answer Hello HappyHeart,
I looked into the trim kits for this unit, and it appears that with the dimensions you provided, the trim kit RK-93S27 should fit. However, we would need to check the depth, as the trim kit requires at least 19 1/2', and we ask that at least another inch to an inch and a half be available for proper ventilation. Please let us know if there are any other questions you may have about this unit.