Genesis 10" Speaker Foam Surround - Bos10Single piece foam surround (Enough for 1 speaker) This is genuine "filleted" foam with a direct attach inner lip, not the generic knock off that others may sell. Some of the models that use this foam include : Genesis 2, 3, 4, 33, 110, 210, 44, 401, 2 +, 3 +, 2+, 3+, 10" Servo Sub, ALSO FITS Passive Radiators with angle attached foam Same American made surrounds that we use in our professional repair facility; NOT cheap Chinese copies!! Surround Bos10