Blackstone Pen Flush Concentrate

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  • Regular price $12.00


Blackstone Pen Flush Concentrate is safe for use with any fountain pen that can be soaked in water. It does not contain any harsh cleaning agents which could damage your fountain pen ( such as bleach, ammonia, alcohol, or phosphates).

Each bottle of Blackstone Pen Flush Concentrate contains 30 mL of a concentrated solution that can be diluted to create 1500 mL of pen flush. (You can mix this solution as needed or create one large batch of 1470 mL of distilled water + one entire bottle of this concentrated flush).