Correct Tech Topside Control 1-628H-APSTD
Correct Tech Topside Control 1-628H-APSTD, 4-10-1503D76, REV #R76, APC, HYDRO SPA, JET, AUX1, AUX2, LIGHT, HEAT UP, HEAT DOWN, INVERT (ABOVE AUX). *Old style in pic to the left.
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