Viton or Norprene for dosing pump hose ?

[skeletor]

I have used Viton in the past but the Norprene seems to be a lot less expensive.. I know that people use Norprene in ozone setups on tanks so it couldn't be to bad...

anyone know if Norprene is ok with SW or should I just stick with Viton ?

thanks,
rich.

[skeletor]

I decided to play it safe and spend the extra few bucks on the Viton... but I would still like to know if anyone has used Norprene in contact with SW..

thanks,
rich.