Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800320-1 Air Boss & Restrictor Kit, GilAir-3/GilAir-5 and B Price on request 801447 Side Insert Assembly GilAir-5 Price on request 800450 Soap Solution, Flow Cell (8 oz.), Gilibrator/Gilib Price on request