Fox Labs, 5.3 SHU Pepper Spray - Flip Top Stream (3 oz) Now with the new carrier chemical. Net wt is 3 oz. Same size can as old 4 oz. Recently, one of these changes necessitated our changing the solvent used in our famous FIVE POINT THREE formula. The primary difference is the new solvent weighs less than the old, so although the amount of the formula in our unit's will remain the same, their net weight will now be lighter. The volume, potency, effectiveness, reliability and non-flammability of this unmatched formula remains the same. Nonflammable & Taser safe Birth date on each unit.