2 1-2 x 7 1-2 Speaker - Subwoofer Replacement Spider

2 1/2 x 7 1/2 Subwoofer Replacement Spider Some of the models that use this spider include : Any requiring a 7 1/2" spider and a 2 1/2" voice coil. Inside Diameter - 2 1/2" Outside Diameter - 7 1/2" Stiffness - "E" on a scale of A-F (F is the stiffest) Inner 3 rings are double layered. Inner mounting has 1/4" tall vertical lip to hug the coil former. Stacking is not recommended. Spider - FS-L Check the Professional-grade adhesives section of our store for the proper adhesive. Same components that professional reconers use!