Centered Mounting Rack for use of the PWS and Free Back Catalog number: 436385 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 436317 Plastic Water Sampler PWS, capacity 10litres, for Price on request 436136 set of 3 Spare Thermometers for Standard Water Sam Price on request 436302 Plastic Water Sampler PWS, capacity 2.5litres, Price on request