Alpine SWR12-D4 Speaker - Subwoofer Replacement Spider - 2.5" x 8" - SWR10-D4

Speaker / Subwoofer Replacement Spider - 2.5" x 8" Some of the models that use this spider include : Alpine SWR12-D2, SWR12-D4, SWR10-D2, SWR10-D4, and more. Inside Diameter - 2.5" Outside Diameter - 8" Stiffness - "C" on a scale of A-F (F is the stiffest) Check the Professional-grade adhesives section of our store for the proper adhesive. 　 Same components that professional reconers use; NOT cheap Chinese imitations!