Is the "Flexpex" water tubing the same as Pex/Sharkbite?

I have a RV at a beach trailer park/campground near Bethany Beach, DE. I am 3 hours away from it. During our last visit in November I noticed the on board water heater was leaking. It appears on a quick look it had rusted through. I have a 30 gallon electric water heater I use during the spring and summer when the campground water is running. I use the 6 gallon onboard for visits between Oct-Apr. So I really didn't get much info on the onboard heater because we noticed it as we were getting ready to leave back in November. I plan to go down in a week or two to check things out and decide which onboard propane heater to get. In the mean time water is on at the park and I will utilize my 30 gallon heater. Sorry for the long lead in.

I want to bypass my 6 gallon heater and pull it out. I want to simply cut the incoming 1/2" line, cut the outgoing 1/2" line and use two Pex/Sharkbite elbows and a piece of 1/2" tubing to bypass the heater and later in the summer I will replace the heater. So per my title question. Is the "Flexpex" water tubing the same as Pex/Sharkbite?

See image or link



http://www.fairlanet.com/images/rv1.jpg

Thanks,