Best Quart 400 2026

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Last Updated - 27.03.2026

Best Choice

01

Ago

AGO Quart Complete Set 2L Quart 400Highly Concentrated Green Remover + Compressed Air Püher Professional Special 6Bar, mit 50cm Brass Extension. Against Algae, Lichens And Other Surfaces. Biodegradable Green, Chlorine and acid free

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safety: use biocidal products carefully - read the label and product information before use. BAuA N-115372
Long-term effect - The green algae remover has a slightly disinfecting effect from 15-18 months from application and thus eliminates micro-organisms in the long term.
Gentle – The lichen remover has a biological basis, is therefore surface-friendly and suitable for a wide range of materials - can also be used for wood, plastic and as an awning cleaner.
Effective – remove lichen without pressure washer and scrubbing – with this green growth remover concentrate, green algae disappear after a few days, black algae within a year.
Economical - Apply the patio tile cleaner with a mixing ratio of 1:20. Use the pressure spray bottle (3 bar) included in the set including 50 cm extension.

99,95 €
02

ABACUS

ABACUS Nell Ultra Green Growth Remover & Algae Remover Concentrate, Extremely Strong! Removes Green Growth & Algae Automatically Without Scrubbing - For Stone, Facade, Patio, Roof - Nell Ultra 5

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Very high yield: the Nell Ultra green growth remover has one of the highest active ingredient content on the market with 40% active ingredient. This makes our green growth remover not only extremely effective, but also very economical - with one litre of our algae remover, up to 100 m² of area of algae and green growth can be freed. This exceptionally high efficiency protects the environment and your wallet without compromising on quality.
Versatile effective: our green growth and algae remover is a real all-rounder and can be used on all waterproof surfaces. It is the perfect helper for outdoor use and is ideal for removing green growth on patios, pavements, stones, facades, plaster, walls, gravestones, roofs, fences, awnings, WPC and much more.
Proven premium quality: our green growth remover has been removing algae and green growth throughout Germany for over 30 years and has proven itself - more than 2 million bottles sold speak for themselves. The combination of carefully selected ingredients and an exceptionally high active ingredient content ensure the effective and automatic removal of algae, green growth, lichens and fungi that Nell Ultra is known for.
Officially registered: Nell Ultra green growth and algae remover is a biocide: use biocidal products carefully. Always read the label and product information before use. / Reg number: N-116781
Long-term protection with deep effect: our green growth remover offers the self-acting effect as well as the proven long-term protection. The special formula penetrates into the capillaries and removes even the smallest residues of algae, lichens and fungi. This means that surfaces treated with Nell Ultra remain protected from new infestations for up to 12 months - not only looks beautiful, but also saves time and money.
In harmony with the environment: the Nell Ultra green growth remover and algae remover meets even the highest quality standards thanks to its sustainability. Since the environment is important to us, we have developed a green growth remover that is chlorine-free, acid-free and contains no animal ingredients. The selected ingredients can also be completely biodegradable and are safe for humans and animals.
AUTOMATIC CLEANING: The Nell Ultra green growth remover & algae remover removes the green coating by itself and is extremely effective - you can sit back and relax while it does the work. The automatic action of the green growth remover frees patios, walkways and other surfaces from unsightly green deposits without tedious scrubbing and cleaning.

84,90 €
03

Ago

AGO® Quart Green Plaque Remover for Façade Wood, Plastic Roof Tiles, Stone, Plaster, Awning, Concrete, and Much More, Chlorine and Acid-Free, Lichen and Algae Remover Concentrate

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safety - Lichen Remover & Natural Stone Cleaner: Use biocidal products with care. Read the label and product information before using the patio and façade cleaner. BAuA N-72912.
Practical algae and lichen remover: Our algae remover concentrate is biologically based, completely gentle on the surface and can be used on all waterproof surfaces.
Long-lasting effect: The highly effective surface cleaner contains an active ingredient that, once applied for 15-18 months, is slightly disinfectant and kills micro-organisms.
Effective green remover: entirely without the need for high-pressure cleaners - no more scrubbing and rinsing. Green algae disappears after a few days, black algae gradually over the course of one year.
Economical Green Plaque Remover for Wood etc.: 1 x litre of Ago Quart algae and green plaque remover makes 20 x litres of ready-to-use solution.

64,90 €
Value for Money

04

Ago

AGO® Quart Green Plaque Remover for Façade Wood, Plastic Roof Tiles, Stone, Plaster, Awning, Concrete, and Much More, Chlorine and Acid-Free, Lichen and Algae Remover Concentrate

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Safety - Lichen Remover & Natural Stone Cleaner: Use biocidal products with care. Read the label and product information before using the patio and façade cleaner. BAuA N-72912.
Practical algae and lichen remover: Our algae remover concentrate is biologically based, completely gentle on the surface and can be used on all waterproof surfaces.
Long-lasting effect: The highly effective surface cleaner contains an active ingredient that, once applied for 15-18 months, is slightly disinfectant and kills micro-organisms.
Effective green remover: entirely without the need for high-pressure cleaners - no more scrubbing and rinsing. Green algae disappears after a few days, black algae gradually over the course of one year.
Economical Green Plaque Remover for Wood etc.: 1 x litre of Ago Quart algae and green plaque remover makes 20 x litres of ready-to-use solution.

64,90 €
05

Ago

AGO® Quart Green Plaque Remover for Façade Wood, Plastic Roof Tiles, Stone, Plaster, Awning, Concrete, and Much More, Chlorine and Acid-Free, Lichen and Algae Remover Concentrate, 500 ml

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Safety - Lichen Remover & Natural Stone Cleaner: Use biocidal products with care. Read the label and product information before using the patio and façade cleaner. BAuA N-72912.
Practical algae and lichen remover: Our algae remover concentrate is biologically based, completely gentle on the surface and can be used on all waterproof surfaces.
Long-lasting effect: The highly effective surface cleaner contains an active ingredient that, once applied for 15-18 months, is slightly disinfectant and kills micro-organisms.
Effective green remover: entirely without the need for high-pressure cleaners - no more scrubbing and rinsing. Green algae disappears after a few days, black algae gradually over the course of one year.
Economical Green Plaque Remover for Wood etc.: 1 x litre of Ago Quart algae and green plaque remover makes 20 x litres of ready-to-use solution.

23,85 €
06

Ago

AGO® Quart Green Plaque Remover for Façade Wood, Plastic Roof Tiles, Stone, Plaster, Awning, Concrete, and Much More, Chlorine and Acid-Free, Lichen and Algae Remover Concentrate, 500 ml

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Safety - Lichen Remover & Natural Stone Cleaner: Use biocidal products with care. Read the label and product information before using the patio and façade cleaner. BAuA N-72912.
Practical algae and lichen remover: Our algae remover concentrate is biologically based, completely gentle on the surface and can be used on all waterproof surfaces.
Long-lasting effect: The highly effective surface cleaner contains an active ingredient that, once applied for 15-18 months, is slightly disinfectant and kills micro-organisms.
Effective green remover: entirely without the need for high-pressure cleaners - no more scrubbing and rinsing. Green algae disappears after a few days, black algae gradually over the course of one year.
Economical Green Plaque Remover for Wood etc.: 1 x litre of Ago Quart algae and green plaque remover makes 20 x litres of ready-to-use solution.

23,85 €
07

Treufix

Treufix - Green Growth Remover & Moss Remover Concentrate [Chlorine and Acid Free] Automatic Removal of Verdigris and Moss | Stone Cleaner for Paving Stones, Patios 5L Made in Germany

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Self-cleaning effect: say goodbye to tedious cleaning work with our patio slab cleaner and roof tile cleaner. Also suitable for the maintenance of awnings, motorhomes, boats and hardwood garden furniture. Our cleaner effectively removes algae, fungi, moss and lichen over weeks/months with automatic action.
PROFESSIONAL ENGAINS: The surface must be dry and at least 24 hours rain-free. Rain delays the effect. In case of severe infestation, reapply after a few days. Protects materials and provides long-term protection
Our promise: Your satisfaction is important to us. If you are not satisfied with the strong green growth remover, you will receive your money back up to 60 days after purchase - without ifs and buts! Use biocidal products carefully. Always read the label and product information before use. (BAuA Reg. No. N-116020)
High quality: simply spray on and let it work. Green growth & algae disappear in 2-3 days, moss in 1-3 weeks, stubborn lichen within 3-12 months. In case of heavy infestation or rain, it may take longer. Patience leads to best results!
Effective cleaning: our green growth remover reliably removes algae, moss, green growth and lichen. Note mixing ratio: 1:3 light, 1:2 medium, 1:1 strong. Stubborn moss? Pure use. It is perfect for gravestones, roofs and wooden fences and protects against new infestations.

34,95 €
08

Treufix

Treufix - Green Growth Remover & Moss Remover Concentrate [Chlorine and Acid Free] Automatic Removal of Verdigris and Moss | Stone Cleaner for Paving Stones, Patios 5L Made in Germany

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10% Off
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Self-cleaning effect: say goodbye to tedious cleaning work with our patio slab cleaner and roof tile cleaner. Also suitable for the maintenance of awnings, motorhomes, boats and hardwood garden furniture. Our cleaner effectively removes algae, fungi, moss and lichen over weeks/months with automatic action.
PROFESSIONAL ENGAINS: The surface must be dry and at least 24 hours rain-free. Rain delays the effect. In case of severe infestation, reapply after a few days. Protects materials and provides long-term protection
Our promise: Your satisfaction is important to us. If you are not satisfied with the strong green growth remover, you will receive your money back up to 60 days after purchase - without ifs and buts! Use biocidal products carefully. Always read the label and product information before use. (BAuA Reg. No. N-116020)
High quality: simply spray on and let it work. Green growth & algae disappear in 2-3 days, moss in 1-3 weeks, stubborn lichen within 3-12 months. In case of heavy infestation or rain, it may take longer. Patience leads to best results!
Effective cleaning: our green growth remover reliably removes algae, moss, green growth and lichen. Note mixing ratio: 1:3 light, 1:2 medium, 1:1 strong. Stubborn moss? Pure use. It is perfect for gravestones, roofs and wooden fences and protects against new infestations.

31,45 € 34,95 €(10% Off off)
09

ABACUS

ABACUS Nell Ultra Green Growth Remover & Algae Remover Concentrate, Extremely Strong! Removes Green Growth & Algae Automatically Without Scrubbing - For Stone, Facade, Patio, Roof - Nell Ultra 2.5 Litres

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Very high yield: the Nell Ultra green growth remover has one of the highest active ingredient content on the market with 40% active ingredient. This makes our green growth remover not only extremely effective, but also very economical - with one litre of our algae remover, up to 100 m² of area of algae and green growth can be freed. This exceptionally high efficiency protects the environment and your wallet without compromising on quality.
Versatile effective: our green growth and algae remover is a real all-rounder and can be used on all waterproof surfaces. It is the perfect helper for outdoor use and is ideal for removing green growth on patios, pavements, stones, facades, plaster, walls, gravestones, roofs, fences, awnings, WPC and much more.
Proven premium quality: our green growth remover has been removing algae and green growth throughout Germany for over 30 years and has proven itself - more than 2 million bottles sold speak for themselves. The combination of carefully selected ingredients and an exceptionally high active ingredient content ensure the effective and automatic removal of algae, green growth, lichens and fungi that Nell Ultra is known for.
Officially registered: Nell Ultra green growth and algae remover is a biocide: use biocidal products carefully. Always read the label and product information before use. / Reg number: N-116781
Long-term protection with deep effect: our green growth remover offers the self-acting effect as well as the proven long-term protection. The special formula penetrates into the capillaries and removes even the smallest residues of algae, lichens and fungi. This means that surfaces treated with Nell Ultra remain protected from new infestations for up to 12 months - not only looks beautiful, but also saves time and money.
In harmony with the environment: the Nell Ultra green growth remover and algae remover meets even the highest quality standards thanks to its sustainability. Since the environment is important to us, we have developed a green growth remover that is chlorine-free, acid-free and contains no animal ingredients. The selected ingredients can also be completely biodegradable and are safe for humans and animals.
AUTOMATIC CLEANING: The Nell Ultra green growth remover & algae remover removes the green coating by itself and is extremely effective - you can sit back and relax while it does the work. The automatic action of the green growth remover frees patios, walkways and other surfaces from unsightly green deposits without tedious scrubbing and cleaning.

54,90 €
10

Nanoprotect

Nanoprotect Stone Cleaner Concentrate | 5 kg Including Pressure Sprayer | For Approx. 500 m² | Intensive Cleaner for Outdoor Plants | Ideal for Home, Yard and Garden

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15% Off
8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The chemistry is right: Nanoprotect has been offering professional special products for the household, garden, car and boat sectors for more than 20 years. Quality – Made in Germany.
Quality that convinces: The high-performance concentrate for deep cleaning and care of all washable surfaces reliably removes greasy dirt, environmental dirt or soot deposits.
Nanoprotect Stone cleaner is not suitable for removing green growth, algae or lichen. For these purposes, we recommend Nanoprotect green growth remover. After successful cleaning, the Nanoprotect stone impregnation can be applied as preventive protection.
Easy to use: the concentrate, which can be diluted 1:8 or 1:5 with water, guarantees reliable clean paths, facades, pebbles, tiles, stone slabs, paving stones or pavements. The right product for every need: also available as a single product, double pack or 5 kg canister.
Box contents: 5 kg stone cleaner concentrate including pressure sprayer. For approx. 500 m². Harmless to plants and animals. Also works on wood, plastic or textiles.

41,55 € 48,90 €(15% Off off)