The new fli subwoofer grill not only provides protection for your sub but also adds style with its fli logo perfect finish to any install when used with fli subwoofers the fli sub grill is a visually appealing way to protect your subwoofer from accidental damage it protects the cone and rubber surround from other items in your boot for use with all fli 10 version 1 subwoofers and enclosures see more product details