The original Electro Voice 70604 foam has been discontinued. This is The Speaker Exchange version of the 70604 tweeter foam used in Sentry 100A, MS802, 889753A, 89478. Please note that these have a different density than the original. These will work for dampening and cosmetic purposes.
Measurements: 5″ outside diameter with 2.35″ 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 outer foam. You will also need the inner foam which is 70534)
Photo below shows EV tweeter with 70604 foam installed.
Photo below shows EV tweeter with 70604 outer foam and 70534 inner foam installed.