Compatible with Advent Focus Center, and others that match the measurements shown. Same American-made surrounds that we use in our professional repair facility; NOT cheap Chinese copies!! Complete 2 speaker foam surround installation kit - 4 inch Easy to follow step-by-step installation instructions and videos Premium professional-grade speaker adhesives Kit includes THE BEST QUALITY foam available:
2 Premium American-made Foam Surrounds (Enough for 2 Speakers)
Step-by-step installation instructions
1 Bottle of premium professional-grade adhesive (Solvent-based)
1 Adhesive application brush
FREE shims available on request

Foam Dimensions
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Kit - 2BP4
Outer Diameter - 3.88" - 98mm
Outer Roll Diameter - 3.56" - 90mm
Cone Diameter - 2.92" - 74mm
Inner Diameter - 2.6" - 66mm
Roll Width - 5/16" - 8mm
Inner Attachment - Angled

SEE COMPATIBLE MODELS ABOVE