Cable Twist Knot Wire Wheel, 4 in dia x 1/4 in W, 0.020 in Stainless Steel Wire, 20000 RPM ORS NASCO Larger surface area means more

Cable Twist Knot Wire Wheel, 4 in dia x 1 4 in W, 0.020 in Stainless Steel Wire, 20000 RPM ORS NASCO Larger surface area means more Larger surface area means more air flows in and out of the mask without a valve Durable Dura Mesh® shell prevents collapsing from heat and humidity FlexFit® design fits the contours of the face and mouth for comfortable extended wear Soft foam nose cushion and pinch free nose bridge Brass construction provides long service life Non interchangeable oxygen and fuel gas connectors Instant closure on reverse flow check valves Spring loaded locking mechanism responds to fingertip action and achieves a gas tight connection Double seal socket connection on second seal