Concentrates Products | Antifreeze | Concentrates OPTICOOL ANTIFREEZE BLUE (D001) OPTICOOL ANTIFREEZE RED (D017) OPTICOOL ANTIFREEZE HD GREEN (D027) OPTICOOL ANTIFREEZE SOAT LILAC (D032) OPTICOOL ANTIFREEZE HDX BLUE GREEN (D031) OPTICOOL ANTIFREEZE YELLOW (D039) OPTICOOL ANTIFREEZE PRO RED (D029) OPTICOOL ANTIFREEZE PRO BLUE (D030)