I know people use this stuff, with apparent success, but I'd be a little worried about the material. Its made of acetal plastic, the stated max temperature is 170F which you'll pass during sparging. Acetal is also susceptible to acid hydrolysis (mash is pH 5) and degradation under hot water conditions.
If it works for you, great, but I'll stick to a length of stainless tubing bent to form.