In the 10 years I have had this unit I have had two Rinos wear out,, I now have a Tetford Smart hose set (It has advantages and disadvantages) and one of the heavy duty extension hoses from CW (Orange or red in color). and the el-cheapo they gave me when I got the rig in 2005.. that is the hose currently in use.
What do I recommend? Drain Master.. that is the last hose you will ever buy (Check out the warranty and you will understand how they can make that claim).
Kind of like Progressive Industries Surge Protectors.. Once you buy it, you'll never buy another (less you get a hard wired one and get a new RV) same reason,, The Warranty.
Lifetime.