Electronics Plus - Hard to find parts and accessories, available and ready to ship!
Lautsprecher Technik - 12" Metal Speaker Grill
C155 - Entry Level In-Ceiling Speaker | Cambridge Audio HK
GHXAMP 4 inch 6.5 inch Speaker Cover White Grill Mesh Protective Cover For Ceiling Speaker Car Subwoofer Loudspeaker 2pcs|Speaker Accessories| - AliExpress
Avalanche White Ceiling Speaker Grill : Electronics