2000L 2" Automatic Pressure Vacuum Relief Cap - 6 Pack for Fuel Tanks, Storage Containers & Agricultural Equipment - Durable & Leak-Proof Design

UseRelieves both pressure and vacuum buildup in fuel tanksRelieves vacuum at .7 Hg (.33 PSI) and pressure at 2 PSI, 20 SCFM flowFeaturesNormally closed, stops fuel evaporation and airborne contaminantsLockableMale NPTSafety notesPressure/vacuum relief caps should be routinely inspected to ensure correct operation and particularly to ensure that the relieving components are free to move and that the air flow path is unblocked