Single Variable Flow Kit, 7-10 x 175mm Back Catalog number: 800257 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0501-01 Flow Monitoring Software Kit (Software, Cable, & M Price on request 783-0012-01-R Battery Pack NiMH Rechargeable Price on request 910-1501-EU Gilian 10i,Starter Kit, EU Cord Price on request