Visibility Disc acc. to Secchi, dia. 30cm,10m stee Back Catalog number: 443593 Availability: In the manufacturer's stock Price on request - + Recommended 438650 Stream Bottom Sampler, Surber Type, mesh size 500 Price on request 5065S-1500 Stainless Telscopic Rod Price on request A179-500 Aluminium Bottle 500ml Price on request