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A DISPOSABLE CARTRIDGE FOR USE WITH DRY CLEANING SOLVENT SUCH AS PERCHLORETHYLENE TO CONDITION THE SOLVENT BY CONTROLLING THE COLOR THEREOF AND COMPRISING: A FABRIC BAG HAVING AN OUTER PORTION ADAPTED TO RECEIVE THROUGH THE PERFORATONS THEREOF SOLVENT TO BE CONDITIONED, A PERFORATED CENTER TUBE CONCENTRIC WITH SAID OUTER PORTION AND HAVING ONE END OPEN FOR DISPENSING CONDITION SOLVENT THERETHROUGH, AN ANNULAR IMPERFORATE LOWER END PLATE AT THE LOWER END OF SAID CARTRIDGE SUPPORTING SAID OUTER PORTION A SPACED DISTANCE FROM SAID CENTER TUBE TO DEFINE AN ANNULAR SOLVENT CONDITIONING CHAMBER, A LOWER COVER HAVING SOLVENT OUTLET MEANS IN COMMUNICATION WITH SAID ONE END OF SAID CENTER TUBE, SAID ONE END OF SAID CENTER TUBE, SAID CENTER TUBE, BEING FASTENED AT SAID ONE END TO SAID LOWER COVER IN A MANNER TO SUPPORT SAID CENTER TUBE GENERALLY PERPENDICULAR THERETO, SAID FABRIC BAG HAVING AN INNER PORTION ENVELOPING SAID CENTER TUBE AND AN INTERMEDIATE PORTION IN JUXTAPOSITION TO THE INSIDE OF SAID LOWER COVER AND THE OUTSIDE OF SAID LOWER END PLATE, SAID FABRIC BAG, SAID LOWER END PLATE, SAID CENTER TUBE AND SAID LOWER COVER FORMING A LOWER COVER AND CENTER TUBE ASSEMBLY, SAID LOWER COVER HAVING A YIELDABLE PRESS-FIT EDGE FRICTIONALLY ENGAGING THE INTERMEDIATE PORTION OF SAID FABRIC BAG ALONG THE INNER PERIPHERAL EDGE OF SAID LOWER END PLATE FOR PARTIALLY CLOSING THE LOWER END OF SAID CHAMBER AND FOR SUPPORTING SAID CENTER TUBE IN SAID CHAMBER, ACTIVATED CARBON GRANULES IN SAID KCHAMBER FOR REMOVING NON-PARTICULATE MATTER FROM SOLVENT FLOWING THERETHROUGH TO CONTROL THE COLOR THEREOF, AND MEANS AT THE UPPER END OF SAID CARTRIDGE FOR SEALING SAID CARBON GRANULES IN SAID CHAMBER.