Installing ductwork can be challenging at times, especially when you’re installing large ductwork above thousands of feet of cable tracking. Using Transverse Duct Connection (TDC), a four-bolt connection system approved by SMACNA for medium and high-pressure duct, was a wise choice by Bill Goveny of Polaris Sheet Metal. You just line up one corner and the rest follow, saving valuable installation time. TDC can be used on fittings as well as straight duct. Want to know more? Call our fabrication shop manager Rob “Butch” Cassidy at 781-273-2050 or email email@example.com.