The Vibro-Acoustics End Result Guarantee is a one-of-a-kind guarantee in the industry. When you take advantage of our free application assistance service, Vibro-Acoustics will also guarantee the estimated noise criteria and pressure drop based on the information provided. Many manufacturers merely provide a “product guarantee” of insertion loss across the silencer, and only when performed in an ideal configuration at their test facility. Unfortunately, that is not an accurate representation of what happens in real ductwork on your project. Only an End Result Guarantee can protect the designer from the unnecessary risk of noise and pressure drop problems at the design stage and ensure a quiet and efficient space for the owner.