Vulcan Dishlex Mk7, Mk8, 500E, 640HD Dishwasher Drain Filter. Part # 702116DFEarly Vulcan Dishlex Dishwasher Drain Filter. Genuine part. no. 702116DF. Equivalent to genuine part no. 8511888, Stokes part no. DWV024D, Qualtex part no. DWV031. Small drain filter as used in most early Vulcan Dishlex dishwashers, including Mark 7 8, 100S, 250S, 500E, 640HD, etc. This part fits into the larger wash filter which we have listed here. If this link does not find anything it is because we are temporarily out of stock. Easy to fit. Fully