HomeSuppliesSafety Wear3M 6864 Center Adapter Valve Cover 3M 6864 Center Adapter Valve Cover Category: Safety Wear Product ID: 23140 Description Description Ea Related products Coverall Tychem – XLarge 3M 5101 Half-Face Mask w/Cartridge 3M 501 Filter Retainer 3M 6894 Nose Cup Assembly