I have found various sources for a tfc 50 gpd membrane that look identical to the coralife one. Hydroton and watts were a couple brands I saw. $20-30 compared to $80-90 for the coralife one. I imagine the coralife one is a rebrand anyway with a sigificant mark up.
Anybody use the after market membranes?
Anybody use the after market membranes?
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