Visibility Disc acc. to Secchi, dia. 30cm,10m stee Back Catalog number: 443593 Availability: In the manufacturer's stock Price on request - + Recommended 8219M-320 Blue Quick Clip. 330mm size. Metal detectable. Pac Price on request 5070D-50 50m cable. PTFE coated stainless steel Price on request 438520 Drop-messenger-operated closing mechanism Price on request