Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800844-2-230 Gilibrator-2 Standard Flow Diagnostic Kit, 230V, E Price on request 800844 Diagnostic Panel with Carrying Case (2-50cc, 20-20 Price on request GH37SR Housing, 37mm 3pc Solvent Res 50/Box Price on request