Ring Trawl (Calcofi) Net Back Catalog number: 438700 Availability: In the manufacturer's stock Price on request - + Recommended A144-230 Tongs. 230mm long Price on request 438703-020 Additional cost for Net Part of Ring Trawl Net wit Price on request 5065A-1201 Telescopic Rod - 0.75m to 1200m Price on request