This is a Brand NEW Replacement Diaphragm For JBL models with 2412 type drivers. Those models include PRX, SF, and some TR, Mpro & EON models. This is an aftermarket JBL diaphragm of high quality an exact fit,drop-in diaphragm with polarized quick-disconnect terminals for easy replacement. To Fit Models: JBL Series: 2412, 2412H, 2412H-8, 2412-8, 2412-1, 2412H-1, 2412H-1-8, 2412-1-8. Sound Factor Series: SF-15, SR-25. JRX Series: JRX100, JRX112, JRX112M, JRX112MI, JRX115, JRX115I, JRX-100, JRX-112, JRX-112M, JRX112MI, JRX-115, JRX-115I. TR Series: TR-125, TR-225. MPro Series: MP-215. Eon Series: Eon1500, Eon Power10, 125-10000-00x, 339013-001X.