FLP/FLT Replacement Ballast, 120V (used for (4) 4' bulbs)

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FLP/FLT Replacement Ballast, 120V.

FMWH7120L is used for (4) 4' bulbs (one ballast on the FLP44/FLP46/FLT44/FLT46 and two on the FLP48/FLT48).