woops...if there were only some experts available to me, then...but I thought that was why I was here.....there was a guy who WAS going to do some of the work - he works for an aluminum trailer place out in Acton, but he flaked...wanted to sell me labor intensive upgrades etc that I didn't need. I needed him " labor " only to get the trailer operative and usable, T & M. He tried to convince me of a huge tank that would have reduced ground clearance to about 5" and a 10.8 gal/min water pump, etc with "....if it were mine.." , anyways he is not in the picture at this point, although I will procure him for welding. he's a good welder..... Perhaps I again did not properly describe the proposed work. There ARE NO rubber "fittings" ! nor would they be considered. The " lines "/ hoses are rubber, but not their termination. Just trying to find out how they are terminated at the ends. Oh, I should have added probably low pressure factory made hoses. I just reread my posting, and I don't know what you read, but I don't see rubber fittings anywhere. but perhaps if I had used fewer words ?....better for you ?