Best Abacus 1 L Clean 2025

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Last Updated - 26.07.2025

Best Choice

01

ABACUS

ABACUS® Extreme Stone Cleaner, Intensive Stone Cleaner for Outdoor Use with Immediate Effect, Removes Immediately Dirt, Green Growth, Lichens and Algae on Stones in Minutes, Stone Cleaner Intensive

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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

Note: stone cleaner extreme is a biocide: use biocidal products carefully. Always read the label and product information before use. / Reg number: N-104852
Extremely versatile: the extreme stone cleaner removes not only algae, fungi and lichens from stones in an instant. When cleaning patio and paving stones, the powerful formula ensures that even dirt, mould stains and even mould are easily removed. What's special about our intensive cleaner? Despite its extreme power, it is gentle on stone surfaces. Whether natural stone, paving stone or concrete, our intensive cleaner removes dirt without damaging it.
Extremely sustainable: the deep effect of the stone cleaner extreme removes even the smallest micro-organisms and bacteria from the stone surface. As even the smallest remains of lichens and algae are removed during stone cleaning, paving stones and terraces are thus protected from re-infestation.
Extremely powerful: the unique formula of the stone cleaner extreme is extremely powerful and has been specially developed to remove even the most stubborn dirt such as green growth, algae, fungi and lichens from stones in no time at all without the need for a pressure washer. The outdoor stone cleaner is so intense that patios and paving stones are brightened again.
Extremely fast: our stone cleaner extreme has been specially developed for quick and immediate green growth removal. It destroys algae, fungi, lichens and dirt in no time. Ideal when visits are coming and paving stones or patios need to be spontaneously cleared of green growth. The dirt is completely removed and the surface shines like new.
Extremely easy to use: our stone cleaner extremely easy to use. Nothing more needs to be done than apply the stone cleaner undiluted to the dirty terrace or stone surface and massage it with a scrubber or brush - leave to work for a short time, rinse and you're done!

59,90 €
Value for Money

02

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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9.7

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

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-116781

49,90 €
03

ABACUS

ABACUS® Almo Speed Stone Cleaner Extreme, Intensive Stone Cleaner for Outdoor Use with Immediate Effect, Removes Immediately Dirt, Green Growth, Lichens on Stones, Stone Cleaner Intensive Exterior

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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

Note: stone cleaner extreme is a biocide: use biocidal products carefully. Always read the label and product information before use. / Reg number: N-104852
Extremely versatile: the extreme stone cleaner removes not only algae, fungi and lichens from stones in an instant. When cleaning patio and paving stones, the powerful formula ensures that even dirt, mould stains and even mould are easily removed. What's special about our intensive cleaner? Despite its extreme power, it is gentle on stone surfaces. Whether natural stone, paving stone or concrete, our intensive cleaner removes dirt without damaging it.
Extremely sustainable: the deep effect of the stone cleaner extreme removes even the smallest micro-organisms and bacteria from the stone surface. As even the smallest remains of lichens and algae are removed during stone cleaning, paving stones and terraces are thus protected from re-infestation.
Extremely powerful: the unique formula of the stone cleaner extreme is extremely powerful and has been specially developed to remove even the most stubborn dirt such as green growth, algae, fungi and lichens from stones in no time at all without the need for a pressure washer. The outdoor stone cleaner is so intense that patios and paving stones are brightened again.
Extremely fast: our stone cleaner extreme has been specially developed for quick and immediate green growth removal. It destroys algae, fungi, lichens and dirt in no time. Ideal when visits are coming and paving stones or patios need to be spontaneously cleared of green growth. The dirt is completely removed and the surface shines like new.
Extremely easy to use: our stone cleaner extremely easy to use. Nothing more needs to be done than apply the stone cleaner undiluted to the dirty terrace or stone surface and massage it with a scrubber or brush - leave to work for a short time, rinse and you're done!

24,90 €
04

ABACUS

ABACUS® 1 Litre Concrete Remover & Urine Stone Remover Extreme (2103) - Cement Film Remover Concrete Veil Remover

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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

Removes mineral deposits
Eliminates urine stone and cement
Descales sanitary systems
1 x 1 litre concrete remover and urine stone remover extreme - even stronger

37,90 €
05

ABACUS

Abacus Gapflow Ultra 2 x 1000 ml – Drain Cleaner Pipes Drain Pipe Clog Hair Remover Liquid

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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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Main highlights

does not develop harmful fumes and does not boil.
Removes deposits even in the further depths of the pipe system.
Eliminates blockages, acts quickly, no crystallization as liquid
Does not affect rubber, pipes, porcelain etc.
2 x 1000 ml Abacus Gapflow Ultra Drain Cleaner.

29,90 €
06

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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9.1

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.

Show more
Main highlights

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-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.

29,90 €
07

ABACUS

ABACUS® Drain Cleaner & Pipe Cleaner, Pipe Free, Drain Free - Removes Hair and Deposits in Pipes and Drains - Drain Cleaner 3 x 1000 ml (7596)

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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

Powerful: hair, soap residue and other deposits in the bathroom, shower and kitchen are reliably eliminated by the pipe cleaner.
Material compatible: the drain cleaner only removes the blockage and does not attack the material. Pipes, seals and surfaces remain intact.
Made in Germany: Our drain cleaner is manufactured and shipped in Germany.
Efficient: highly efficient drain cleaner for removing blockages in pipes, drains and siphons.
Easy to use: thanks to the special formula, our pipe cleaner does not develop toxic fumes and does not boil.

39,50 €
08

ABACUS

ABACUS® 1000 ml Flash Clean Professional Floor Cleaner Low Foam for Machines (2138)

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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.

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Main highlights

Suitable for all floors
Non-slip and self-shining
Low foam
Highly concentrated
1 x 1000 ml Flash Clean Prof floor cleaner low foam for cleaning machines

33,90 €
09

ABACUS

ABACUS® Industrial Drain Cleaner, Pipe-Free, Drain Free - Removes Hair and Deposits in Pipes and Drains - Industrial Drain Cleaner 1000 ml (2150)

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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.

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Main highlights

Powerful: hair, soap residue and other deposits in the bathroom, shower and kitchen are reliably eliminated by the pipe cleaner.
Material compatible: the drain cleaner only removes the blockage and does not attack the material. Pipes, seals and surfaces remain intact.
Made in Germany: Our drain cleaner is manufactured and shipped in Germany.
Efficient: highly efficient drain cleaner for removing blockages in pipes, drains and siphons.
Easy to use: thanks to the special formula, our pipe cleaner does not develop toxic fumes and does not boil.

34,90 €
10

ABACUS

ABACUS® Orange Floor Cleaner, Floor Cleaner, Parquet Cleaner, Multi-Purpose Cleaner, Mop Care, Floor Care, Maintenance Cleaner - Floor Cleaner, Orange Fresh, 1000 ml (2145)

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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 polymers contained in our orange fresh floor cleaner lay like a protective film on the floor after cleaning and leave the floor looking freshly wiped for longer.
The orange fresh floor cleaner has exceptional dirt-dissolving properties and exudes a unique fresh orange fragrance.
Thanks to the use of high-quality ingredients, our orange fresh floor cleaner dries extremely quickly and thus saves the annoying wiping - streak-free cleanliness from the first wipe.
Our orange fresh floor cleaner is very economical and combines strong cleaning with sustainable care.
Our orange fresh floor cleaner is suitable for any floor covering and makes parquet, floorboards, tiles, laminate, PVC and more appear in new splendour.

19,90 €