Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended KB-3-10 Kynar Bag 3.0L Pack of 10 Price on request 811-0501-01 Flow Monitoring Software Kit (Software, Cable, & M Price on request GCU37500PVC-2 Cassette, 37mm 2pc 5.0µm PVC, 50/Box Price on request