I could tell mine were brittle and breaking so I took them out and spent some time considering what to do. One option is to order the 90 degree ones that Hammer used (from TH I think). I preferred stainless but they are all too long but I finally found some short model from Attwood that are only 2 1/2" long top to bottom (about the same as from the top of the old one to the bottom of the elbow), so with the hose bent tight, it's slightly longer but seems to drain well.
No check valves so water still pops up when rocking and the thru hull dips below for a sec but it goes back out. The plus is that these are stainless, the drawback is that the tops are more mushroomed than the OEM ones, so not every drop goes down, a tiny amount of water will sit around the drain (maybe a 1-2 tablespoons), since it's higher than the floor.
Here is a link, this is the only place I could find short barbed SS ones and if you click on the images you can see the dimensions etc. One other thought was to hack off the barb then the threads are only 1" long or so, and just tread this into the elbow you took out (the good part). That may work, but wanting to get on the water this past weekend I didn't want to experiment only to find the threads didn't match or something. In fact you should try this and let me know if it works ;D ;D
http://www.firstchoicemarine.com/p-1...1-id-hose.aspx
Good luck!
Scott
;D