Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-22 Teflon Bag, On-Off Valve (0.5L) Price on request 800275-2 Gilibrator-2 Deluxe Kit, with Printer 230V , Euro Price on request 811-0901-EU-R Single Station Basic Dock 100-240Vac, 50-60 Hz, Eu Price on request