Visibility Disc acc. to Secchi, dia. 30cm,10m stee Back Catalog number: 443593 Availability: In the manufacturer's stock Price on request - + Recommended 450020 Set of 10 Spare Fluorescent Tubes for ICES Incubat Price on request 8219M-320 Blue Quick Clip. 330mm size. Metal detectable. Pac Price on request 1640A-1500 100ml Point Sample Chamber with 1.5m handle Price on request