Operates virtually dust-free when used a Blastrac shroud. The 05-bl-233 is a quality hand-held grinder designed specifically for concrete prep coatings removal. Powerful 6600 rpm motor.
Veins contain valves so that the blood keeps moving in one direction, and does not flow backward in our legs due to gravity (if there were no valves in the veins, most of our blood would pool in our feet).
Function. The function of a backflow prevention device is to keep dirty water from pools, storm drains and other external water sources from flowing backward into clean, uncontaminated water or into your home.