Replacement activated carbon filter for Weller WSA 350 bench top smoke absorber. 5 pack. Heavier carbon load than competition. Individual carbon filter dimensions are 130 mm x 130 mm x 10 mm (5 1/8"x5 1/8"x3/8"). Note:Not affiliated with Cooper Industries Incorporated,or Apex Tool Group L.L.C.,all uses and references of Weller and Weller part numbers are property of Apex Tool Group L.L.C.,and Cooper Industries Incorporated,or any other entities,thru assumption,transfer,or purchase.