The Friedrich easy-assemble sleeve ships flat and is easily assembled. This sleeve is designed to snap together, yet is still constructed of powder coated, galvanized steel. It is manufactured to withstand the rigors of installation in most weather and environmental conditions for years! This 27" TTW wall sleeve will keep your unit in place once installed and offers thermal efficiency and noise reduction as well as corrosion protection.
The WSEZ ships flat but once assembled, it measures 16.75"d x 27"w x 16.75"h. The opening required is 17.25"h x 27.25"w.