Forum Discussion
Old-Biscuit
Jun 04, 2014Explorer III
Horst Probes........
Top one is for grey and/or fresh water tanks
Bottom one is for black tank (has shroud to keep TP/Stuff off probe)

Comes in pack of four........LINK
Top one is for grey and/or fresh water tanks
Bottom one is for black tank (has shroud to keep TP/Stuff off probe)

Comes in pack of four........LINK
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