set of 3 Spare Thermometers for Standard Water Sam Back Catalog number: 436136 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 436325 Plastic Water Sampler PWS, capacity 30litres Price on request 436346 Freeflow Water Sampler with 10l capacity Price on request 436385 Centered Mounting Rack for use of the PWS and Free Price on request