Hello, we do not stock a matrix with only 1 x single 60mm ID outlet, they maybe available with some hunting around, but it's not a configuration that is common/popular. Will you be wishing to have a long length of ducting on the single outlet ie is the matrix to be mounted quite remote from the cabin/saloon area. Often a single source heat solution in a room is solved with something similar to our arizona models - examples below
Thank you