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A genuine OEM concentrated toilet fluid from Thetford. Designed to liquefy waste, control odours, and reduce gas build-up in waste holding / cassette toilets with a more environmentally conscious formula.

For clean and hygienic sanitation, using a high quality additive helps make emptying, deodorising and maintaining your toilet far easier, while the concentrated formula reduces waste in packaging and weight.

OEM Part Number: 30645ZK / 30645CX

1 × 750 ml bottle of Aqua Kem Green Concentrated fluid

Specifications:

Volume: 750 ml

Concentration: 2× stronger than Thetford’s standard non-concentrated fluid, so one bottle equals approx the use of a 1.5 L standard bottle 

Septic tank safe compliant with relevant standards

Odour Control: Outstanding, designed to reduce gas build-up and keep the tank smelling fresh

Expected Dosage: 75 ml per dose, lasting up to 4 days under normal use

Frequently Asked Questions

Q: How much of this fluid should I use per flush / filling of the tank?
Use about 75 ml of the concentrated fluid per filling of your cassette tank (or as per measurement marks). This dose typically gives up to 4 days of odour control under moderate use. Excess use won’t harm the toilet, but is wasteful.

Q: What does “concentrated” mean & what are the benefits?
Because it’s twice as strong, you need less fluid per use. The benefits are: smaller/lighter bottle, less packaging, more space in storage, fewer refills, same performance.

Q: Will it reduce odours and gas build-up?
Yes. It’s formulated to liquefy waste, neutralise odours, and help reduce gas formation, making your tank easier to empty and more pleasant to use.

Q: Can I use this fluid in any cassette toilet?
Yes, this will work in any toilet that accepts liquid toilet chemicals / additives

Q: How often do I need to add fresh chemical?
You’ll need to add a fresh dose when you empty and refill the tank, or earlier if odours appear. Generally, every 3-4 days for Green concentrated under normal use.