GROCO 1-1/2" #316 Stainless Steel NPS to NPT Flange Adapter [IBVF-1500-S] Hunting & Fishing | Outrigger Accessories this BlueChart delivers unparalleled clarity

this BlueChart delivers unparalleled clarity and detail for fishing

from charting to StructureScan® 3D imaging

Dave has made his Blue Box" nearly indestructible so it will last for years of hard use

5" diameter round base that contains the universal AMPs hole pattern

UPC: 742985146488

GROCO 1-1/2" #316 Stainless Steel NPS to NPT Flange Adapter [IBVF-1500-S] Hunting & Fishing | Outrigger Accessories this BlueChart delivers unparalleled clarity1 1 2" #316 Stainless Steel NPS to NPT Flange Adapter IBVF Flanged Adapters have been developed to address several common problems in the marine industry. Features: Eliminate dangerous thread miss match when in line valves are screwed onto thru hulls Accept standard thru hulls into the base and standard in line valves on top Provide a safe and sturdy assembly when in line valves are used as seacocks For OEMs, prevent valve damage during engine or