I bought a complete used system and it came with some Tunze streams. 2 of the pumps say 6201 and the other 3 have lost their stickers. 2 of the pumps have transformers that say 7410.602A, 2 say 6200.800A, and the 5th came with a small box attached and what looks like a long rectangular transformer.
How do I figure out exactly what I have and what it would take to upgrade them?
How do I figure out exactly what I have and what it would take to upgrade them?