‹› Image Automatic Pressure/Vacuum Relief Cap for Fuel Tank Markets Petroleum Cargo Tanks Jump to Section Product Options Related Products Product Options Hide lower priority columns Part Number All 200-PV-92000L2500LSize All 2"2-1/2"Male Thread All NPTMaterial All AluminumZinc 200-PV-9 2" NPT Aluminum 2000L 2" NPT Zinc 2500L 2-1/2" NPT Zinc Related Products Image Standard Vent Cap for Stationary Fuel Tank Image Vacuum Relief Valve Female Outlet Image Vacuum Relief Valve