Tunze Universal Osmolator Replacement Pump 5000.020
http://www.jlaquatics.com/phpstore/s...ct_ID=tz-osmop
J&L's retail $28 after tax
Asking for $20 firm
Works very well.
Never pumped any calcium or other chemicals, pumped nothing but top off water with it.
Tunze Level Controller 5017 died so i have no use for the pump anymore.