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Underground Grease Trap - 300 and 500l

Underground Grease Trap - 300 and 500l

Freeflush

£559

Price read from Freeflush on 2026-10-15. Check before buying.

The underground grease traps have a passive design, which works by simply slowing the flow of wastewater, allowing it to cool and separate into two separate layers within the trap. Firstly solids and food waste being heavier than water will drop to the base of the chamber. GT models all have deep vertical design that enhances the fat, oil and grease (FOG’s) separation process, offering better settlement and storage of solids and sludge at the base of the trap. FOG’s entering the trap that have a specific gravity less than the retained water in the unit and will separate and FOG's will float to

Freeflush's own words, read from their page.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.