This new, fully assembled H1 duct-leakage tester was made for the most demanding leak-testing jobs, company officials say. It can test up to 1,550 cubic feet per minute at 2 inches water gauge system pressure. The H1 is made to the same standards as the company’s C1 tester line.

Oriflow, P.O. Box 2475, Palm Harbor, FL 34682; (323) 230-7589; fax (323) 230-6616;