Visibility Disc acc. to Secchi, dia. 30cm,10m stee Back Catalog number: 443593 Availability: In the manufacturer's stock Price on request - + Recommended A134-450 Pro Whisk. 450mm long. Stainless Steel Price on request K101-2000F Aluminium temp probe. 2m Price on request 438123-021 Net bag Mini - protective net 300µ Price on request