http://products.construction.com/MasterFormat2004Index/heating,-ventilating,-and-air-conditioning-(hvac)_23-00-00/Fabricated-Stacks_23-51-19RSS Feed for Fabricated-Stacks2009 The McGraw-Hill Companies, Inc. All rights reserved.<div><table><tr><td><a href='http://products.construction.com/Manufacturer/Heatfab-NST151672/overview' border='0'><img height='51px' width='70px' valign='top' align='left' border='0' src= 'http://products.construction.com/swts_content_files/151672/274522.jpg' hspace='5'> </a></a></td><td>Heatfab</td></tr></table></div>http://products.construction.com/Manufacturer/Heatfab-NST151672/overview<div><table><tr><td><a href='http://products.construction.com/Manufacturer/Selkirk-LLC-NST151682/overview' border='0'><img height='51px' width='70px' valign='top' align='left' border='0' src= 'http://products.construction.com/swts_content_files/151682/274531.jpg' hspace='5'> </a></a></td><td>Selkirk Metalbestos Model PS and IPS are modular, prefabricated piping systems which embody flanged joints designed for both quick assembly and pressure-sealing capabilities. They offer a combination of insulated piping components as well as the structural accessories needed for support and attachment to building structures. Expansion joints are available both in gasket designs and in pressure tight, all-welded bellows designs.</td></tr></table></div>http://products.construction.com/Manufacturer/Selkirk-LLC-NST151682/overview