- Hole cutout of 11.125"
- Outside diameter 13"
- Will allow you to install a 12" round speaker in a square hole
- Made with 3/4" MDF
- Other thickness available upon request
- Can be used as a spacer to extend speaker mounting depth on a box by 3/4"
- Other hole sizes available upon request
- Can be used for fiberglass projects
- This listing is for 1 piece
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