4"

Upgrade your old foam surrounds with rubber if the sizes fit!
4 inch Rubber Surround Kit (R4-1) 4 inch Rubber Surround Kit (R4-1)
Angled attachment to cone A - O.D. of the surround = 3.875" B - Roll ends = 3.5" C - O.D. of the cone = 2.875" D - I.D. of the surround = 2.7"
$24.95$29.95
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