can i use this for a water changes?

Probably .. but for your sized tank a couple of inexpensive white 5 gallon buckets available at the paint dept in Lowes/HD may be less expensive and more convenient.
 
I have a 65 gal tank and use a 32 gal rubbermaid brute to store RO water and another 32 gal brute for my pre-mixed salt water. Just keep a pump in the RO and a pump and heater in the salt.

I purchased the same tube your looking at and now it hangs in my basement unused.
 
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