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IWS Flood & Drain Systems


At The Greenhouse Effect we stock IWS Flood & Drain systems and accessories.


If you need any help please call us on 01908 585 283, our highly knowledgeable staff will be happy to assist you.


We have everything you need to get growing under one roof!

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IWS 10 Litre Pro Remote System with Flexi Tank, IWS, IWS Flood and Drain
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£549.99 – £1,349.99
£494.99 – £1,214.99 Select options

IWS 10 Litre Pro Remote System with Flexi Tank

£549.99 – £1,349.99
£494.99 – £1,214.99 Select options
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IWS 10 Litre Pro Remote System with Rigid Tank, IWS, IWS Flood and Drain
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£549.99 – £1,449.99
£494.99 – £1,304.99 Select options

IWS 10 Litre Pro Remote System with Rigid Tank

£549.99 – £1,449.99
£494.99 – £1,304.99 Select options
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IWS 10 Litre Standard Remote with FlexiTank, IWS, IWS Flood and Drain
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£459.99 – £1,029.99
£413.99 – £926.99 Select options

IWS 10 Litre Standard Remote with FlexiTank

£459.99 – £1,029.99
£413.99 – £926.99 Select options
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IWS 10 Litre Standard Remote with Rigid Tank, IWS, IWS Flood and Drain
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£449.99 – £999.99
£404.99 – £899.99 Select options

IWS 10 Litre Standard Remote with Rigid Tank

£449.99 – £999.99
£404.99 – £899.99 Select options
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IWS 10 Litre Standard System with FlexiTank, IWS, IWS Flood and Drain
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£324.99 – £699.99
£292.49 – £629.99 Select options

IWS 10 Litre Standard System with FlexiTank

£324.99 – £699.99
£292.49 – £629.99 Select options
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IWS 10 Litre Standard System with Rigid Tank, IWS, IWS Flood and Drain
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£309.99 – £679.99
£278.99 – £611.99 Select options

IWS 10 Litre Standard System with Rigid Tank

£309.99 – £679.99
£278.99 – £611.99 Select options
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IWS 16 Litre Standard System, IWS, IWS Flood and Drain
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£319.99 – £1,099.99
£287.99 – £989.99 Select options

IWS 16 Litre Standard System

£319.99 – £1,099.99
£287.99 – £989.99 Select options
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IWS 20 Litre Pro Remote System, IWS, IWS Flood and Drain
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£549.99 – £1,459.99
£494.99 – £1,313.99 Select options

IWS 20 Litre Pro Remote System

£549.99 – £1,459.99
£494.99 – £1,313.99 Select options
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IWS 25 Litre Pro Remote System with Flexi Tank, IWS, IWS Flood and Drain
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£649.99 – £1,249.99
£584.99 – £1,124.99 Select options

IWS 25 Litre Pro Remote System with Flexi Tank

£649.99 – £1,249.99
£584.99 – £1,124.99 Select options
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IWS 25 Litre Standard System with Flexi Tank, IWS Flood and Drain, IWS
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£399.99 – £899.99
£359.99 – £809.99 Select options

IWS 25 Litre Standard System with Flexi Tank

£399.99 – £899.99
£359.99 – £809.99 Select options
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In stock

IWS Copper Disc 170mm - Aqua or Culture Pots, IWS, IWS Flood and Drain
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IWS Copper Disc 170mm – Aqua or Culture Pots

£1.50 £1.35 Add to basket
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In stock

IWS Copper Disc 250mm - Punched Pots, IWS, IWS Flood and Drain
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IWS Copper Disc 250mm – Punched Pots

£1.50 £1.35 Add to basket
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In stock

IWS Float Switch, IWS, IWS Flood and Drain
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IWS Float Switch

£14.99 £13.49 Add to basket
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IWS Flood & Drain Flexi Tanks Complete, IWS, IWS Flood and Drain
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£109.99 – £269.99
£98.99 – £242.99 Select options

IWS Flood & Drain Flexi Tanks Complete

£109.99 – £269.99
£98.99 – £242.99 Select options
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IWS Flood & Drain Rigid Water Butt Kits, IWS, IWS Flood and Drain
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£89.99 – £499.99
£80.99 – £449.99 Select options

IWS Flood & Drain Rigid Water Butt Kits

£89.99 – £499.99
£80.99 – £449.99 Select options
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IWS Flood and Drain Control Units - Brain, IWS, IWS Flood and Drain
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£159.99 – £349.99
£143.99 – £314.99 Select options

IWS Flood and Drain Control Units – Brain

£159.99 – £349.99
£143.99 – £314.99 Select options
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IWS Kitbags for Standard or Pro Systems, IWS, IWS Flood and Drain
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£24.99 – £29.99
£22.49 – £26.99 Select options

IWS Kitbags for Standard or Pro Systems

£24.99 – £29.99
£22.49 – £26.99 Select options
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IWS Pots, Flood & Drain, IWS, IWS Flood and Drain
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