Mechanical Flow Meter with back-run stop Back Catalog number: 438115 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438116-IN Electronic Flow Meter for MultiNet Price on request 439011 Temperature Sensor -2 to + 32°C, max. depth 6.000 Price on request 450536 Oxygen Sensor OxyGuard Ocean D.O. Probe Price on request