3M 19151 Dust Head, 38 in Head Lg, 3 7 8 in Head Wd, Tan 2CRH9 Packaging Seal Material Buna N Force Packaging Seal Material Buna N Force @ 50 psi 11 lb Product Type Manual Air Control Valve Operating Temperature Minimum 15 Degrees F Exhaust Port Connection Gender Female Body Style Panel Mounted Vacuum Rating Not Vacuum Operable Operating Pressure Maximum 140 psi Valve Type Rotary Operating Pressure Minimum 20 psi Valve Action Normally Closed Coefficient of Volume (Cv) 1 This adjustable wrench set has 8 in 38 in Head Lg Series Doodleduster Product Type Dust Head Head Length 38 in Head Width 3 7 8 in Color Tan Disposable Yes Country of Origin United States