Review on 🔥 DH3 Pre-Heater Hose by Standard Motor Products: Size 1-1/2 x 7 inches, Extendable up to 20 inches by Jared Poinson

Used as an air preheat hose on a 1980 Datsun 720: I measured the diameter of the hole on the air intake pipe and on the steel plate of the exhaust cover where hot air was vented: 1.5 inches accurate , everyone. This hose is designed for 1.5 inches. Just as. I assumed it could stretch a little since it had to match the OD - that didn't happen - the hose does extend in length, but it practically doesn't "bend" in diameter, it did so don't take a little fiddling and cut the metal off. I made a secure connection with no air leakage simply by running the aluminum foil on and then holding it in place with hose clamps (also remember it has to withstand some heat). . much like a warning on how to use it - On the plus side - the hose had to be pushed and pulled hard without tearing or squeezing - Relatively strong material.