Those look a lot like the surrounds for the older Fosgate Hx2 subs......Typed in rubber surround on eBay.
12" inch Heavy Duty Rubber Subwoofer Surround Kit Hifonics Memphis Rhino More | eBay
thanks will check it outTyped in rubber surround on eBay.
12" inch Heavy Duty Rubber Subwoofer Surround Kit Hifonics Memphis Rhino More | eBay