GROCO Series 1/2" Raw Water Strainer w/Non-Metallic Plastic Basket ARG-500. ARG-500 Series 1/2" Raw Water Strainer with Non-Metallic Plastic Basket Specifications for GROCO ARG-500 Series 1/2" Raw Water Strainer w/Non-Metallic Plastic Basket: Manufacturer: GROCO Color: Black Features of GROCO ARG-500 Series 1/2" Raw Water Strainer w/Non-Metallic Plastic Basket Mounting System Allows Removal Without ToolsBonding Connection Both SidesO-Ring Seal All Joining SurfacesFilter Basket Options: #304 SS (Standard) Monel & Non-Metallic/PlasticOne-Piece Molded Sight Glass Eliminates Tie Rods and GasketsImproved Drain PlugNon-Metallic Cap Magnifies Internal ViewingNPT or BSPP Threaded PortsImproved Basket DesignC84400 bronze head castingUL Listed 255-D Package Contents: GROCO ARG-500 Series 1/2" Raw Water Strainer w/Non-Metallic Plastic Basket GROCO ARG-500-P: Series 1/2" Raw Water Strainer w/Non-Metallic Plastic Basket ARG-500