During our haulout in July, I discovered the exhaust thruhull fitting on our Krogen 42 was cracked.* We made adequate (but temperary) repairs to it.* I am now on a quest for a good quality exhaust fitting.* Recently, I saw what looked to be a stainless steel (it may have been chrome/brass) exhaust fitting with a hinged metal flap over the opening.* I was unable to ask the owners about it.* So far my quest has been a dismal failure.* Can anyone point me in the right direction?