To get the right size foams, measure the
cone diameter and simply choose a kit with a slightly smaller I.D.
In the picture is a 12 inch woofer.
It has a cone diameter of 9.25 inches. The G12F kit has a
I.D. of 8.75 inches giving you a 1/4 inch overlap for glue
FOAM KITS ALSO COME IN 2 STYLES...
FLAT ATTACH and ANGLE ATTACH.