WTB: Mag-Drive 18 or 24

[bigmayreefer]

I want to upgrade the pump on my 75. I currently have an oceanrunner3500 i will be transfering to a different setup. I would prefer a Magdrive 24 but will consider an 18 if someone is really desperate to get rid of it. :) If no one has one used for sale, any suggestions on a good place to get a new one at a good price would be appreciated.
Thanks in advance.

[chadfarmer]

these are going to be on a 75 for a closed loop or the return pump

[bigmayreefer]

return pump with a shunt to adjust flow

[bjc451]

my dad has an extra mag 18 dont jnow if he wants to get rid of it it is from a pond 4000 gallon he upgraded to a 24

[bigmayreefer]

let me know if he does, and how much.