Grotek Final Flush

In stock online
Standard Delivery £6.95*
Free Delivery - orders +£65 Free Delivery - orders +£65
Plain Packaging Used Plain Packaging Used
While Stocks Last While Stocks Last
Product Name Qty Price
Final Flush Blueberry 1L
Special Price £6.00 Regular Price £12.30
Final Flush Unscented 1L
Special Price £6.00 Regular Price £12.30
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Grotek Final Flush is a flushing agent developed to be used during the final 7-10 days before harvest that helps rid the plants and growth medium of unused nutrients and salts which have built up for the plants life, it’s also suitable for use in all grow mediums, whether soil, coco or hydroponic systems.

These excess nutrients and salts can cause crops to leave a bitter aftertaste if the plants haven’t been efficiently flushed, but using Grotek Final Flush will rid your plants of these unwanted elements leaving your fruits not only lush, but also full of amazing flavours.


  • Grotek Final Flush can also be used to help correct any over feeding at any stage of the grow, simply stop using your base nutrients along with any supplements, use Grotek Final Flush, then once the your plants are stable, go back to your normal feeding regime and carry on as usual.
  • Flushing should also be repeated during the final 7-10 days, even if you’ve used it mid grow, your fruits at harvest will thank you for it.
Delivery & Returns
Free Delivery
We are pleased to offer free standard shipping to UK Mainland on all orders over £65.00 *Heavy item surcharges are still applicable.
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or email customer service and we can arrange a free collection.
Plain Packaging
All parcels, no matter how big or small, are dispatched in plain packaging using black wrap that's secured using 'fragile' tape.
How to Pay
Credit / Debit Cards
We accept all major credit and debit cards. Please note: When paying by credit card we can only ship to the card statement address.
Simply select this option at checkout if you prefer to pay through PayPal. Please note: When paying by PayPal, we can only ship items to the account owners confirmed address.
Bank Transfer
Select the option for Bank Transfer at checkout if you wish to receive your item anywhere within the UK. Please use your order number as payment reference.
Split your purchase into manageable payments. Buy now and pay in 30 days or in three interest-free instalments with Klarna.
Click & Collect
Collect your online orders in as little as under an hour*! Simply pay online, choose your store & collect for free! Available from Manchester & Huddersfield (*subject to stock availability).
Brand Grotek
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