Additional cost for Net Part of Ring Trawl Net wit Back Catalog number: 438703-020 Availability: In the manufacturer's stock Price on request - + Recommended 5070D-50 50m cable. PTFE coated stainless steel Price on request 5065S-4500 Stainless Tele Rod. Up to 4m Price on request 1640A-1500 100ml Point Sample Chamber with 1.5m handle Price on request