The vibco BVS-130 silent Pneumatic turbine Vibrator features 75 lbs. Of Vibratory force, 10, 500 VPM, and employs vibco's patented silent turbine Vibrator design. It has a threaded exhaust port to be used with Muffler (sold separately). exhausted air can be piped away up to 10 feet. The BVS-130 has a 2-bolt foot mount with a 4” center-to-center mounting holes. The aluminum housing is lightweight, durable and corrosion resistant. Use this product to replace loud ball and piston-style vibrators that require lubricated air. The vibco BVS-130 is pre-lubricated for life and requires 60-80 psi of clean, dry air and consumes just 5. 5 cfm, operating at 70Db on a-scale at 1 meter. ; &use a filter regulator for optimum life and performance (sold separately). ; .