Cleaning & Maintenance


Degrades fats, oils and greases


GT20 is an dvance grey water treatment product, which are very effective in use.
It is a liquid multi-strain bacterial solution specifically formulated to degrade fats, oils and greases (FOG’s) and other types of food waste in the demanding environments of galley scuppers, drain lines, grease traps, grey water tanks and grease interceptors, reducing build-up and preventing odours .

GNC Marine supplies GT20 in 4x5Ltr packaging

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    Priceless Experience

    Our staff and partners each have more than 25yrs experience in either chemical, biological, biocidal products, cleaning equipment, service provision and global logistics.

    Custom Packages

    We design, manufacture and supply specialized cleaning, maintenance and biosecurity products with proven performance to the marine and offshore industries.


    We have a history of working in partnership with the industry’s key technology providers, distributors and OEM’s. We can deliver products to you in all the key international ports

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