Additional cost for Net Part (one single net each) Back Catalog number: 438183-020 Availability: In the manufacturer's stock Price on request - + Recommended 438212 Net Part for Neuston Net, mesh size 300microns Price on request A136-01S 1" Butterfly Valve kit (316L) with Silicone seal Price on request 450010 Set of 12 Experimental Bottles (Serial No. xx) Price on request