Signature EX Deodorizer Solvent-based for long lasting deodorization Signature EX is a blend of evaporative control solvents and essential oils carefully selected to generate a vapor barrier that traps malodors on surfaces. The essential oils counteract those malodors before they become noticeable. This solvent-based deodorizer continues to release the Signature Fresh fragrance into the air far longer than water-based deodorizers. Your best choice for really tough odors especially pet-based odors where injecting a deodorizer into the carpet pad is needed. Signature EX can be used by itself or in conjunction with other products such as Sapphire Scientific Pet Odor and Stain Pre-spotter and Sapphire Scientific Pet Odor and Stain Treatment. See label for instructions. Sold as Case of four 1 gal. (3.8 L) bottles Re-order 76-160 Appearance Transparent yellow liquid Odor Signature Fresh Flash point 163° F | 72.8° C Specific gravity 0.79 Phosphate content None