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FlowBrake Retain BioRetention Drawdown Kit

FlowBrake Retain BioRetention Drawdown Kit

Freeflush

£99

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

The Prestige SuDS planter can be used as a bio retention planter. In this configuration the rainwater enters the soil media filing the voids. Excess flows can exit the tank via The FlowBrake Retain. The FlowBrake Retain has the following features: Slotted drainage channel - slot size 5x2mm, 6 slots per circumference @ 12mm centres Coir filter sleeve over full length - preventing movement and loss of fines High level overflow - allowing excess flows to be discharged and to prevent overtopping of the tank Overflow strainer to prevent large debris being passed forward Outlet tank connector suitab

Freeflush's own words, read from their page.

Buy from FreeflushOut of stock. Price seen 2026-10-15. Not an affiliate link, we earn nothing from it.

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