Visibility Disc acc. to Secchi, dia. 30cm,10m stee Back Catalog number: 443593 Availability: In the manufacturer's stock Price on request - + Recommended A134-550 Pro Whisk. 550mm long. Stainless Steel. Discontinu Price on request 438650 Stream Bottom Sampler, Surber Type, mesh size 500 Price on request 8022P-50 Liquid funnel Price on request