Cobra head elbows are used when clearance is extremely limited, such as when an air cleaner outlet is up against a firewall. There is no other way to make a really tight bend without losing air flow. How does the cobra head make such a tight bend without increasing turbulence? Because it flares out, creating more volume internally without increasing length. Use a cobra head anywhere a standard or short-radius elbow will not fit.
Five-ply reinforced silicone for high strength.
We now recommend all silicone elbows be 5-ply or better.
Thick 7/32" wall construction.
5" Inner diameter on the short end and 4" ID on the long end
