Mac Allister pack of 2 disposable nylon fine filtration dust bags for 30L and 40L wet & dry vacuum cleaners. With improved filtration capacity for removal of fine dust, dirt and debris and maintain maximum cleaning efficiency. Provides a hygienic and mess-free disposal solution. Each dust bag includes a flange that can be fully inserted around the suction inlet stub, forming a tight seal. Compatible with most makes of 30L and 40L wet & dry vacuum cleaners including Mac Allister MWDV-30L-A 30L wet & dry vacuum cleaners, Titan TTB776VAC 30L wet & dry vacuum cleaner, Mac Allister MWDV-40L-A 40L vacuum cleaners and Titan TTB777VAC 40L wet & dry vacuum cleaner.