"DUCT IS THE SAME AS P/N 7-511712043-1 EXCEPT LENGTH IS .18 IN. SHORTER DUE TO PART RECONFIGURATION, MUST MEET THE FOLLOWING REQUIREMENTS: OPERATING MEDIUM-AIR, TEMP-550 DEGREES FAHRENHEIT, PRESSURE-60 PSIG MAX, PROOF PRESSURE-120 PSIG MIN., BURST PRESSURE-180 PSIG"