No matter how attentive to detail you are, the back of the unit will have three (top to bottom) small gaps. When placed against a wall, you dont see them but if you have ceiling to floor windows behind them (as I do), you will see them quickly. Matching tape of some kind, or making the pieces fit more tightly would help hide them as gray duct tape wont look good.
They need to include matching duct tape
No matter how attentive to detail you are, the back of the unit will have three (top to bottom) small gaps. When placed against a wall, you dont see them but if you have ceiling to floor windows behind them (as I do), you will see them quickly. Matching tape of some kind, or making the pieces fit more tightly would help hide them as gray duct tape wont look good.