Thetford Aqua Rinse Concentrate 750ml – Toilet Flush Water Treatment

Premium Flush Water Additive for Portable & Cassette Toilets

Keep your portable, cassette, or onboard toilet flush system fresh, effective and odor‑controlled with Thetford Aqua Rinse Concentrate 750ml — a concentrated flush water additive engineered specifically for marine, RV, caravan, and camping toilets. This powerful fluid helps prevent limescale build‑up, keeps the bowl shiny and clean, and delivers a smoother flush experience every time you use it.

A little goes a long way — each 750 ml bottle is equivalent to about 1.5 L of standard toilet rinse fluid thanks to its concentrated formula, minimising upfront cost and plastic waste while delivering effective, septic‑safe performance.

Key Features & Benefits

• Highly Concentrated Formula – 750 ml equals 1.5 L of traditional toilet rinse, offering excellent value and fewer refills.

• Safe for Flush Water Tanks – Designed for flush water tanks in portable/cassette toilets, ensuring a cleaner and fresher flush experience.

• Prevents Limescale Build‑Up – Helps protect and maintain your flush tank by reducing scale formation over time.

• Lavender‑Scented Freshness – Leaves a pleasant lavender scent with each flush, enhancing comfort and hygiene.

• Septic Tank Safe & Biodegradable – Meets Thetford’s anaerobic biodegradability standards, making it safe for septic systems where permitted.

• Compatible with Plastic & Ceramic Bowls – Safe for use with most portable toilet bowl materials without damaging surfaces.