Best Cristal Ph Spar 2026

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Last Updated - 03.02.2026

Best Choice

01

Bayrol

Cristal Granules - 2 x 1.0 kg Active Oxygen Granules + 1 x 1.0 L Active Oxygen Activator - Mega Economy Set for Chlorine-Free Water Disinfection from the Pool

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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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Main highlights

Well-being: our water care provides special chlorine-free protection for skin and hair without pungent chlorine odour. The chlorine-free formula ensures that your eyes are no longer irritated - a clear plus for enjoyment in your pool.
Note: According to EC guidelines GefStoffV. Use biocidal products carefully. Always read the label and product information before use. BAuA Reg. No.: N-58499 & BAuA Reg. No: N-58498
Granulate: The Cristal active oxygen granules are part of the system care for swimming pool water based on active oxygen.
Gentle water care: our chlorine-free alternative ensures a gentle treatment of your pool water without sacrificing effectiveness.
First treatment: add 150 ml of Cristal active oxygen activator per 10 m³ directly into the water. Then add 200 g of Cristal active oxygen granules.
Additional dosage: 50 ml Cristal active oxygen activator per 10 m³ directly into the water. Then add 100 g of Cristal active oxygen granules.
Activator: enhances the effect of active oxygen granules. At the same time, this liquid activator is a foam-free algae repellent, which prevents algae growth.

41,95 €
Value for Money

02

Bayrol

Cristal Granules - 2 x 1.0 kg Active Oxygen Granules + 1 x 1.0 L Active Oxygen Activator - Mega Economy Set for Chlorine-Free Water Disinfection from the Pool

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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

Well-being: our water care provides special chlorine-free protection for skin and hair without pungent chlorine odour. The chlorine-free formula ensures that your eyes are no longer irritated - a clear plus for enjoyment in your pool.
Note: According to EC guidelines GefStoffV. Use biocidal products carefully. Always read the label and product information before use. BAuA Reg. No.: N-58499 & BAuA Reg. No: N-58498
Granulate: The Cristal active oxygen granules are part of the system care for swimming pool water based on active oxygen.
Gentle water care: our chlorine-free alternative ensures a gentle treatment of your pool water without sacrificing effectiveness.
First treatment: add 150 ml of Cristal active oxygen activator per 10 m³ directly into the water. Then add 200 g of Cristal active oxygen granules.
Additional dosage: 50 ml Cristal active oxygen activator per 10 m³ directly into the water. Then add 100 g of Cristal active oxygen granules.
Activator: enhances the effect of active oxygen granules. At the same time, this liquid activator is a foam-free algae repellent, which prevents algae growth.

41,95 €
03

Bayrol

Cristal PH Set with – Cristal PH Level 1 kg + Ph Reducer 1.5 kg

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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

Quick water test: use a pool tester to check the pH value regularly. Correct if necessary with the matching product from the set.
Practical care tip: check water values once or twice weekly for long-term stable water quality - ideal for pools and hot tubs.
Ideal pH value as a base: keep the pH between 7.0 and 7.4 for optimal water quality and maximum effectiveness of other care products such as chlorine or oxygen.
Easy to use and dosage: the easily soluble granules are easy to dose and protect materials. Perfect for precise pH adjustments without corrosion.
EFFECTIVE PH VALUE REGULATION: Optimize the pH of your pool or spa water with the Cristal set of 1 kg pH lifter (pH plus) and 1.5 kg pH reducer (pH minus) - the basis for crystal clear water.

17,95 €
04

Bayrol

Cristal PH Set with – Cristal PH Level 1 kg + Ph Reducer 1.5 kg

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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

Quick water test: use a pool tester to check the pH value regularly. Correct if necessary with the matching product from the set.
Practical care tip: check water values once or twice weekly for long-term stable water quality - ideal for pools and hot tubs.
Ideal pH value as a base: keep the pH between 7.0 and 7.4 for optimal water quality and maximum effectiveness of other care products such as chlorine or oxygen.
Easy to use and dosage: the easily soluble granules are easy to dose and protect materials. Perfect for precise pH adjustments without corrosion.
EFFECTIVE PH VALUE REGULATION: Optimize the pH of your pool or spa water with the Cristal set of 1 kg pH lifter (pH plus) and 1.5 kg pH reducer (pH minus) - the basis for crystal clear water.

17,95 €
05

Cristal

Cristal pH-Plus Granules 1 kg - Reliable pH Increase for Hot Tubs & Spas - Easy to Use - Highly Effective & Quick Dissolving

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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

Stabilisation of the pH value through buffer effect: the alkaline reacting granules not only ensure the raising of the pH value, but also stabilises it by its buffer effect. This prevents large fluctuations in pH value, which ensures constant water quality.
REGULAR PH CONTROL FOR CLEAN POOL WATER - Check the pH of your pool 1-2 times weekly with a water tester to ensure the ideal pH range from 7.0 to 7.4. If necessary, the pH value can be easily corrected with our pH lifter.
Effective pH increase for pool water care: the Cristal pH Plus granules increase the pH value of your pool water quickly and reliably. The right pH balance ensures optimal water quality and is the basis for all further care steps, such as disinfection and algae prevention.
Easy to use and high material protection: our pH Plus granules are easy to dose and gentle on materials such as films and pool technology. It dissolves quickly, leaves no residue and is safe and comfortable to use.
Easy dosage and use: to increase the pH value by 0.1, you only need 100 g pH lifter per 10,000 litres of water. Ideal for pools of any size. Thanks to the quick solubility, the granules are evenly distributed in the water and are easy to use.
Compatible with all pool types and filter systems: Our Cristal pH Plus granules are suitable for all pool types, whether above ground pools, recessed pools or whirlpools, and is compatible with all filter systems. This makes water care particularly flexible and universally applicable.

10,95 €
06

Cristal

Cristal pH-Plus Granules 1 kg - Reliable pH Increase for Hot Tubs & Spas - Easy to Use - Highly Effective & Quick Dissolving

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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.

Show more
Main highlights

Stabilisation of the pH value through buffer effect: the alkaline reacting granules not only ensure the raising of the pH value, but also stabilises it by its buffer effect. This prevents large fluctuations in pH value, which ensures constant water quality.
REGULAR PH CONTROL FOR CLEAN POOL WATER - Check the pH of your pool 1-2 times weekly with a water tester to ensure the ideal pH range from 7.0 to 7.4. If necessary, the pH value can be easily corrected with our pH lifter.
Effective pH increase for pool water care: the Cristal pH Plus granules increase the pH value of your pool water quickly and reliably. The right pH balance ensures optimal water quality and is the basis for all further care steps, such as disinfection and algae prevention.
Easy to use and high material protection: our pH Plus granules are easy to dose and gentle on materials such as films and pool technology. It dissolves quickly, leaves no residue and is safe and comfortable to use.
Easy dosage and use: to increase the pH value by 0.1, you only need 100 g pH lifter per 10,000 litres of water. Ideal for pools of any size. Thanks to the quick solubility, the granules are evenly distributed in the water and are easy to use.
Compatible with all pool types and filter systems: Our Cristal pH Plus granules are suitable for all pool types, whether above ground pools, recessed pools or whirlpools, and is compatible with all filter systems. This makes water care particularly flexible and universally applicable.

10,95 €
07

Cristal

Cristal pH Minus Granules 1.5 kg – Effective pH Reduction for Hot Tubs & Spas – Easy Dosage – Highly Effective & Quick Dissolving

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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

Suitable for all pool and filter systems: our pH countersink is compatible with all pool types and filter systems. Whether in the above-ground pool, recessed pool or whirlpool - the pH reducer ensures clear and balanced water quality.
Prevents limescale deposits and protects pool technology: our pH countersink ensures an optimal pH between 7.0 and 7.4 to prevent limescale deposits and protect your pool technology. This keeps your pool in top condition.
Gentle and safe to use: the pH minus granules are gentle on the materials of your pool and leave no residue. Thanks to the easy solubility, it spreads evenly and ensures a quick effect.
FOR OPTIMAL WATER QUALITY: Check the pH value 1-2 times weekly with a water tester to ensure the pH remains within the ideal range. Use the pH countersink if necessary to reliably reduce the value.
Effective pH reduction: Cristal pH reducer (pH minus) lowers the pH value of your pool water reliably and quickly. A balanced pH value is the basis for optimal water care and prevents limescale deposits as well as skin and eye irritation.
Easy dosage and use: to reduce the pH value by 0.1, you need approx. 100 g pH reducer per 10,000 litres of water. Ideal for any pool size, dissolves quickly and is easy to use.

11,95 €
08

Cristal

Cristal pH Minus Granules 1.5 kg – Effective pH Reduction for Hot Tubs & Spas – Easy Dosage – Highly Effective & Quick Dissolving

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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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Main highlights

Suitable for all pool and filter systems: our pH countersink is compatible with all pool types and filter systems. Whether in the above-ground pool, recessed pool or whirlpool - the pH reducer ensures clear and balanced water quality.
Prevents limescale deposits and protects pool technology: our pH countersink ensures an optimal pH between 7.0 and 7.4 to prevent limescale deposits and protect your pool technology. This keeps your pool in top condition.
Gentle and safe to use: the pH minus granules are gentle on the materials of your pool and leave no residue. Thanks to the easy solubility, it spreads evenly and ensures a quick effect.
FOR OPTIMAL WATER QUALITY: Check the pH value 1-2 times weekly with a water tester to ensure the pH remains within the ideal range. Use the pH countersink if necessary to reliably reduce the value.
Effective pH reduction: Cristal pH reducer (pH minus) lowers the pH value of your pool water reliably and quickly. A balanced pH value is the basis for optimal water care and prevents limescale deposits as well as skin and eye irritation.
Easy dosage and use: to reduce the pH value by 0.1, you need approx. 100 g pH reducer per 10,000 litres of water. Ideal for any pool size, dissolves quickly and is easy to use.

11,95 €
09

Cristal

Cristal Set of 1 kg pH lifter + 1.5 kg pH reducer - raises or lowers and stabilises the pH value of the pool water - easy to use - pH plus pH minus

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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

Quick dissolving and gentle on materials: the high-quality granules dissolve quickly and are gentle on the pool material. Perfect for soft and hard water without promoting corrosion.
Prevents limescale deposits: especially with hard water, the set protects against limescale precipitation and deposits, which promotes the cleanliness and longevity of the pool.
Optimal pH control: The Cristal set of 1 kg pH lifter and 1.5 kg pH reducer provides precise control and stabilisation of the pH value for clear, clean pool water.
High chemical purity: the granules have a high purity, without harsh chemicals such as hydrochloric acid - ideal for permanent care of swimming pool water.
Essential for all care products: a stable pH between 7.0 and 7.4 is crucial for the full effectiveness of all pool care products such as chlorine or oxygen.
Easy dosage and handling: the pH lifter increases the pH value by 0.1 with approx. 10g per 1000L of water, while the pH reducer lowers the same value - ideal for accurate adjustments and easy application.

18,95 €
10

Cristal

Cristal pH Countersink Granules 6 kg – Easy to Use – Quick Dissolving – For Stable pH Value – pH Minus – Optimisation as a Basis of Water Care

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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.

Show more
Main highlights

REGULAR CONTROL FOR OPTIMAL WATER QUALITY: Check the pH value 1-2 times a week with a water tester to ensure the pH remains within the ideal range. Use the pH countersink if necessary to reliably reduce the value.
Prevents limescale deposits and protects pool technology: our pH countersink ensures an optimal pH between 7.0 and 7.4 to prevent limescale deposits and protect your pool technology. This keeps your pool in top condition.
Gentle and safe to use: the pH minus granules are gentle on the materials of your pool and leave no residue. Thanks to the easy solubility, it spreads evenly and ensures a quick effect.
Effective pH reduction for crystal clear pool water: Cristal pH reducer (pH minus) lowers the pH value of your pool water reliably and quickly. A balanced pH value is the basis for optimal water care and prevents limescale deposits as well as skin and eye irritation.
Easy dosage and use: to reduce the pH value by 0.1, you need approx. 100 g pH reducer per 10,000 litres of water. Ideal for any pool size, dissolves quickly and is easy to use.

23,94 €