I own a 2004 320 DA Sundancer and have lost the stainless cap for the waste pump out hole on the back of the boat. The threaded opening measurement is approximately 1 3/4". All I can find in stores and online are all 1 1/2". I called the local Sea Ray dealer and Sea Ray no longer makes or stocks this item. This seemed very strange to me that a cap that has on chain attached on a boat has never been lost or in need of replacement?? He did say Sea Ray offers a substitute for $25, I have a feeling it is genuine plastic at that price. BUT, now he can't even get that?? Can someone help me with a suggestion?
