The Nex Flow™ Silent X-Stream™ Air Blade™ Air Knife has proven to be of high
quality, high performance and one of the most quiet, if not "the most
quiet" designs on the market for all types of blow-off and cooling
applications. Eliminating a row of drilled pipe can save up to 90% of
compressed air costs. It is made of aluminum and coated for long life. Comes complete with a stainless steel shim to set the
air gap (most others use cheap plastic which can wear out quickly) and
are held together with stainless steel screws. They can also be coupled
together using a coupling kit for longer spans.