Best Quart 400 2025

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Last Updated - 09/06/2025

Best Choice

01

ABACUS

ABACUS® Nell Ultra Green Growth Remover & Algae Remover Concentrate, Extremely Strong! Removes Green Growth & Algae Automatically with Long-Term Protection - for Stone, Facade, Patio, Roof - Nell

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9.8

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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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.
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-111940
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.

84,90 €
02

Pink Chilli

Pink Chilli Green Growth Monster – Green Growth Remover without Scrubbing – Industrial Concentrate Cleaner Chlorine and Acid Free – Green Growth Cleaner with Long-lasting Effect – Versatile Stone

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9.5

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

Versatile: as a versatile patio cleaner and facade cleaner, our green growth monster can be used on all surfaces. It reliably removes algae, lichens and green deposits. Make any surface radiantly clean!
Quick use: the algae killer works from 5 °C outside temperature. The surface should remain dry for at least 2 days during and after application for optimal results. Perfect for thorough cleaning. BAuA no.: 100998. Use biocidal products carefully. Always read the label and product information before use.
No rubbing – the treated surface cleans itself through natural weather, without the need for tedious scrubbing or pressure washers. Green deposits disappear within four hours, while lichens take up to 18 months.
Long-lasting use: Our green growth monster acts sustainably as an algae killer and green growth remover. Up to 18 months after the first application, it keeps the treated area free of new infestation, depending on location and weather.
Efficient and efficient: our patio cleaner is a highly concentrated green algae remover and lichen remover, which can be individually mixed according to the severity of the coverings. Which makes it an extremely efficient green growth cleaner.

74,99 €
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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9.3

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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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.

59,90 €
Value for Money

04

ABACUS

ABACUS® Nell Ultra Green Growth & Algae Remover Concentrate, Extremely Strong Automatically Removes Green Growth and Algae with Long-Term Protection - for Stone, Facade, Patio, Roof - Nell Ultra, 4 x

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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.

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Main highlights

Very high yield: At 40%, the Nell Ultra Green Growth Remover has one of the highest active ingredients on the market. 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.
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 & Algae Remover is a biocide: Use biocidal products with care. Always read the label and product information before use (English language not guaranteed). Reg. no: N-96059.
Long-term protection with deep effect: In addition to the automatic effect, our green growth remover also offers 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 are protected from new infestations for up to 12 months - not only looks beautiful, 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 plaque on its own and is extremely effective - you can sit back and relax while it does the job. The automatic action of the green growth remover frees patios, walkways and other surfaces from unsightly green deposits without tedious scrubbing and cleaning.
All-round 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.

69,90 €
05

Terra Domi

TerraDomi Nevergreen Concentrate 1:60 for up to 3000 m² Roof Cleaner Green Remover Moss Remover Cleaning Agent Stone Cleaner

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9.1

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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Very productive due to mixing ratio of 1:10 - 1:50, depending on the degree of soiling of the surfaces to be treated.
The original from TerraDomi: Nevergreen is the universal disinfectant cleaner for a perfect home and garden – your paths, reed roofs, pebbles, tiles and stone slabs have never been so clean.
Long-lasting effect for a beautiful home: The stone cleaner keeps your paving stones, walkways, reed roofs and places permanently free from annoying greenery and moss for approximately 1 year and ensures effective cleaning.
Directions for use: The care product cleans surfaces made of stone easily and with little effort. Simply apply with watering can or pressure nozzle from approx. 30 cm and leave to work for 3 - 4 hours.
Box contents: 1 x Nevergreen original from Terra Domi.

36,95 €
06

Terra Domi

Terra Domi Rusche Stone Shower, 5 Litres, Stone Cleaner for up to 2000 m², Cleaning Agent for Clean Paths & Spaces, Pathway, Biodegradable

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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.

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Main highlights

Use biocidal products carefully. Always read the label and product information before use.
The original from TerraDomi: Rusche stone shower is the universal cleaning agent for a perfect home with garden - your paths, pebbles, tiles and stone slabs have never been so cleanly blasted.
Powerful effect for a beautiful home: the stone cleaner keeps your paving stones, pavements and places permanently free of annoying green growth and ensures effective cleaning, while being free of glyphosate and degradation.
Note: The cleaner is used to maintain paths and places and should not be used as a weed killer, as plants, weeds, lawns and grassland will die and wither within 2-3 days.
H314: Causes serious skin burns and serious eye damage. H400 Very toxic to aquatic organisms. H411 toxic to aquatic organisms, with long-term effects.
Biocide register number: N-93337
Application: the care product is liquid, colourless and odourless and cleans surfaces made of stone easily and without much effort, simply dilute with water in the ratio 1:5 to 1:8 and apply to the surface using a pressure sprayer, syringe or watering can.

36,95 €
07

HG

HG Algae and Green Growth Remover Concentrate 5 Litres, Green Growth Remover Against Algae and Moss on Patios, Paths, Walls, Roofs, Wood, Tombstones and More, Long-lasting, Economical Consumption

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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.

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Main highlights

Versatile: HG green growth remover removes algae on patios, paths, walls, roofs, wooden sleepers, terracotta pots, gravestones, gravestones and more
Highly effective and fast: after applying the HG algae and green growth remover, the algae disappear within 36 hours
Harmless: Of course, our moss remover and algae remover in diluted form does not pose a danger to grass and plants
Economical to use: mix with water in a ratio of 1:20. Our moss remover is sufficient for up to 1,000 m²
Easy to use: mix HG green growth remover concentrate in a ratio of 1:20 with water. Apply the solution to the affected surfaces with a watering can or plant sprayer

34,99 €
08

Höfer Chemie

Bayzid® Stone Cleaner / Green Growth Remover Concentrate Against Moss, Algae and Green Growth 2 x 5 L

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8.5

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

Use biocidal products carefully. Always read the label and product information before use. Biocide Reg. No. N-98244
To achieve the desired success, coarse braids and dirt can be removed manually in advance. Use only on dry surfaces. Do not hose with water.
Spray the surface well with a solution of 1:10 (100 ml to 1 L) and leave for at least 3 days. The covering is dissolved and washed off by the rain. Do not spray plants! If this happened by mistake, Wipe clean immediately.
Effective on outdoor basement stairs, patios, stone slabs, walls and roof tiles and works self-cleaning.
Bayzid stone cleaner / green growth remover concentrate is ideal for use around the home. It actively removes moss, algae, lichens and other green growth with long-term effect.

39,15 €
09

Hanse Pro

HANSE PRO Green growth remover, 1 x 5 litres, concentrate, universal, algae remover, stone slab cleaner, for home, garden and awning

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8.4

Good

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✓ Wide range of uses: Eliminates algae and greenery from terrace, driveway, roof, pavement, house façade, wooden fence, concrete pavement, balcony, concrete, stone, sandstone, house wall, roof tile, pavement stone, plaster, awning, stone windowsill, natural stone, clinker, tombstone and much more.
✓ Convenient use: dilute bottle contents with water. Simply apply with garden sprayer or watering can to dry surface and leave to work for 24 hours. Cleans self-acting and thoroughly. No pre-cleaning, no annoying scrubbing or rinsing necessary.
Very economical: only 250 ml concentrate is sufficient for use on up to 100 m², 1000 ml concentrate on up to 400 m²
Quality made in Germany: this high-quality product is manufactured and bottled exclusively in Germany under high quality requirements. Baua Reg. No. 77369, Hansepro green growth remover is a biociod. Use biocidal products carefully. Always read the label and product information before use.
Deep cleaning: ideal protection against dirt and risk of slipping due to algae and green growth. Maintains the value of the treated surfaces and delays the new infestation. No pre-cleaning, no annoying scrubbing or rinsing necessary.

39,99 €
10

ECO CLEAN KRAFTVOLL, NACHHALTIG & SAUBER

Eco Clean® Stone Shower, 1 Litre, Highly Effective Stone Cleaner for Outdoors, Reliable Green Growth Remover without Scrubbing, Made in Germany

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8.1

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

️OUR PROMISE - We at Eco Clean are convinced of our quality and therefore want to allow you an absolutely risk-free order: If you are not 100% satisfied, you will receive your money back - (except construction defects or application errors) up to 1 year after purchase
️ Made in Germany – Since quality is very important to us, production in Germany is particularly important to us, because this gives us the opportunity to carry out regular checks and have direct influence on production. In addition, environmentally friendly production with the highest quality standards is given. We also pay attention to German quality when selecting raw materials
️ Impressively effective – with our moss remover, you have made the right decision. The very productive, material-friendly and particularly strong algae remover concentrate from Eco Clean is just the thing if you are looking for a versatile, low-odour and particularly effective paving stone cleaner. Suitable as a facade cleaner or as a patio cleaner. A guaranteed very good, satisfactory and long-lasting result!
️ Health and environmentally friendly – sustainability and environmental awareness are becoming increasingly focused even with cleaners. Therefore, our green growth remover is a particularly environmentally friendly and health-friendly product due to its relatively low harmful substance content. Therefore, the dried surfaces do not pose any danger to humans and animals. Clean without any worries!
️ Amazingly versatile – with our moss killer, you have the opportunity to let countless surfaces shine in new splendour. From garden furniture, wooden panels, stone slabs, awnings, window sills, flower pots, gravestones, facades and roofs. You can renew all washable surfaces with our lichen remover. Increase the value of your items and increase the safety of your home!

10,66 €