Overall outer diameter 12-5/8'' Speaker Stands Recommendations | Helpdesk Nakamichi USA These Speaker Covers are Ideal for Home Entertainment, Marine and Automotive applications. Replacement 2 Way Crossover for 10 / 12/ 15 Speaker & Horn Cabinet Steel Speaker Grills White Reliable Hardware Company RH 4002 12 2 A Mount White Powder Coat Steel Speaker Grilles Fits a speaker with a maximum outer diameter of 12-1/2'' The Reliable Hardware Company RH 4002 12 2 A Mount 12" Speaker Cover is a durable, professional grade grille designed to protect your 12 inch speaker while maintaining optimal sound performance They may be washed as well as painted. Steel components + satin white powder coat finish is extremely durable and corrosion resistant.