... disperse the zipper's stress.SAFETY BLOWER PIPEFor the pipe connet with blower, we specially design one flap ... is too storng, please block the fan air inlet a little point.6, such as large-scale use ... it.2, Find out the inflatable castle air inlet pipe,then connect with the blower , and then alternate ... ground, do some regular inspections ,by the fan air inlet on the fence, to avoid accidents.Part4, The ...