What is a good pump to run ferric chloride through?

Hello. I am a new jeweler, and I am looking to build a spray etcher to photoresist images onto copper and brass. I am wondering if anyone knows of a good centrifugal pump that can run ferric chloride ⇦ on eBay or Amazon [affil link] through it. From my research, I understand that no wetted parts should contain any metals such as carbon steel, stainless steel, brass or aluminum.
UN 2582, PG II, Class 8.

Moreover, I need a pump made of PVC, PVDF, PTFE, PP or graphite that are suitable for ferric chloride ⇦ on eBay or Amazon [affil link] transfer. Will a fish tank pump work for this application, or do you know of a type that will work, hopefully under $75.00?

Thank you in advance for your time,

You're probably looking for a magnetic drive pump. You can get these in various materials that are resistant to a good number of corrosive solutions.

However, you're not going to find it for $75. The cheapest ones are going to be at least $120 or so, depending on materials of construction and flowrate/pressure. Check out McMaster-Carr's website for some current pumps/pricing.

Well there is another alternative.
Medical pumps, ever look at how they work?
It's a series of lobes that pinch and drag a section of vinyl or latex tubing, creating suction and pushing the liquid through. It's not high pressure, but as you're considering using a fish pond pump I'm thinking you don't need it to be.
It's called a Peristaltic pump
more from wikipedia.org
en.wikipedia.org/wiki/Peristaltic_pump

A quick search on google shopping shows that they are selling for as low as $20

Good luck.