Neptune Systems FS-100 Flow Sensor

Neptune Apex systems FS-100 I never used this, must have received them with something I purchased. They were used by someone, just not me. I have no way to test them but no reason to believe they don't work. Seem to be in fine condition. Obviously you'll need to locate correct fitting to use this. Comes as pictured. Wysiwyg. No returns on this. Buy it at your own risk.

Condition: Used · Seller: triggreef_corals · 100.0% positive · 991 ratings

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