3 – Horizontal Sill Base

FG450, 1-3/4″ X 4-1/2″ – Horizontal Sill Base

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FG451, 2″ X 4-1/2″ NON-THERMAL – Horizontal Sill Base

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FG451T, 2″ X 4-1/2″ THERMAL – Horizontal Sill Base

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