Hand Net acc. to Böttger, mesh size 500microns Back Catalog number: 438310 Availability: In the manufacturer's stock Price on request - + Recommended A716-400-4 400mm Powder Funnel. 316Lss with 4" outlet Price on request 443591-001 Spare Rope for Visibility Disc acc. to Secchi Price on request 5065S-3000 Stainless Telscopic Rod. 1.5 - 3m Price on request