Hatt+H2 With these options. maximum total pipe length is 28 feet with of 11 teat minimum total vertical and maximum 9 foet total horizontal. Plees, note minimum 1 loot between90°elbows Is required. A) 1' Max. 1' Min. 3' Max. B) 2' Max. 3' Min. 5' Max. C) 3' Max. 5' Min. 6' Max.