Tobler Duncker specifies Duravit's Darling wall-mounted toilet, available in five colors, for its “well-designed, clean, simple look” and to maximize space, Duncker says. The firm often pairs it with Geberit's Tessera concealed tank/carrier system, which is built into the wall between the studs, freeing up 6 inches to 9 inches of space and making cleaning easy. Duravit USA, 888.387.2848; www.duravit.com. Geberit, 847.803.5000; www.geberit.com.