Jabsco Toilet Fresh "Clean & Condition" marine toilet cleaner suitable for use with all manual and electric heads. This liquid has been specially formulated for the marine environment making it safe for use with all toilet systems. It does a similar job to a regular household bleach, but without the nasty chemicals that are unsuitable for use on boats. A normal household bleach would damage valves and seals in your toilet, increasing maintenance and giving greater risk of failure. The "Clean and Condition" toilet cleaner prevents scale build up, cleans the bowl and deodorises.