Our premium hardwall wet exhaust marine hose is certified for wet exhaust service. Offers the same features as our premium softwall exhaust hose. In addition, wire reinforcement provides additional strength for longer connections with excellent flexibility. Heavy-duty wall construction with multiple plies of nylon spiral cord prevents shock, wall collapse, panting and vibration. Resists engine exhaust, high temperatures and ozone. Recommended for runs longer than four times the inside diameter of the hose. Color coded with a blue stripe. Meets or exceeds SAE J2006 R2 standard, and has double the ozone resistance required by the SAE J2006 standard. Is formulated for maximum resistance to heat, weather, UV and ozone resistance. Temperature range -20F to 220F (-29C to 104C).