DUST COLLECTOR REPLACEMENT FILTER FOR SAND BLAST CABINET GOOD FOR AIR FILTERS ON SAND BLAST CABINETS MODEL #420, #990, #1200 AND MANY OTHERS REPLACEMENT FILTER ONLY - NO ATTACHMENTS OR OTHER METAL COMPONENTS HAS : RUBBER GASKET 3/8" TO AVOID LEAKAGES TOTAL LENGTH IS 12.1/8" - INSERTED LENGTH IS 12" GOOD FOR DUST COLLECTORS FULTERS AS SHOWN INSETRED AS PICTURE 1 , AND GOOD FOR DUST COLLECTOR SYSTEMS AS SHIOWN IN PICTURE 2