Fits models SDA SRS 1.2TL, SDA SRS 2.3TL, SRS 3.1TL, RTA 11TL and RTA 15TL. It is a very popular tweeter used in many Polk speakers. - Fits models Monitor 12 series 2, M10 series 2, M7 series 2, M5 series 2, M5 Jr + series 2, M4.6 series 2 and RTA 8TL.
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