The original Electro-Voice 70534 foam has been discontinued. This is The Speaker Exchange version of the 70534 tweeter foam used in MS802, Sentry 100A, 889753A, 89478. Please note that these have a different density than the original. These will work for dampening and cosmetic purposes.
Measurements: 2.35″ outside diameter with .75″ cutout. Sold individually. You can use spray-glue or latex to apply. Do not use the BC1 or S180 contact glue for this purpose.
(This is the inner foam. You will also need the outer foam which is 70604)
Photo below shows EV tweeter with 70534 inner foam & 70604 outer foam installed.