Replace sta-rite posi-flow 50TX

I need a new tank for my posi-flow 50tx. The old one has started rusting and leaking around the weld. Is there anyplace to find this. If not what’s a good comparable replacement filter system?

Those parts are no longer fabricated however you may be able to find them at a local pool retailer or service company as used parts. We do carry the Pentair Clean and Cleat 50 sq ft which can replace it that and you can view all details by clicking here.