Is grey flex pipe for pools reef safe ?

[cracker]

I want to use this for drains on a herbie/bean overflow. Looks like this. I used old hose from awet dry on a smaller over flow and it worked great. this stuff is different. I e/med the manufacturer to see what they say. Ya think it's reef safe?

 

[kacrocorals581]

What I have on my overflow

 

[cracker]

Thanks ! I really wanted to use it but knew for sure it wasn't good to use ! Usually Murrphy's law applies to me . LOL