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Best Cristal Ph Spar - Holidays Sale

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Last Updated - 14.12.2025

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01

Cristal

Cristal pH reducer minus granules 18 kg – effective pH regulation – easy to use and dosage – for material-friendly lowering of the pH value without causing corrosion

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9.8

Exceptional

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Top effect, easy to use: acidic reacting granules for pH lowering, easy to use and dosage, easy to solubility, gentle on materials. In contrast to hydrochloric acid, additionally prevents corrosion
Tip: measure your water values once or twice weekly with a water tester to correct the pH of your pool water.
Effective pH regulation: Cristal pH reducer (pH minus) in a practical 18 kg storage set for adjusting your pH value as the basis of your water care steps.
Easy to use: use a pool tester to determine the pH value. To reduce the pH value by 0.1, approx. 100 g pH reducer required per 10 m³ pool content.
Base of water care: the adjustment of the pH value between 7.0 and 7.4 forms the basis of all further care steps.

62,95 €
02

POOL Total

Cristal Water Care Set 5 kg - Chlorine Granules Quickly Dissolves - pH Reducer - pH Lifter - Algae Prevention - Clear Effect - Care Brochure - Pool Whirlpool

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9.7

Exceptional

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Main highlights

Safe and efficient: all components are coordinated to improve water quality, ensure safety when swimming and extend the life of the pool.
SUITABLE FOR ALL POOL SIZES: Ideal for swimming pools from 1,000 to 20,000 litres, this set offers a complete solution for pool maintenance and cleaning.
Note: use biocidal products carefully. Always read the label and product information before use. BAuA Reg. No.: N-31836, N-100518
Highly concentrated formulas: Cristal products are known for their high quality and effectiveness, which ensures reliable water care and long-lasting cleanliness.
Easy to use: each product in the set is specially designed to simplify pool care. The enclosed water care guide provides clear instructions for use and dosage.
Comprehensive pool care: this set contains 1 kg of chlorine granules for effective disinfection, 1 litre algae prevention for algae control, 1.5 kg pH minus and 1 kg pH plus granules for pH value regulation as well as 0.5 l clear effect for crystal clear water.

44,95 €
Value for Money

03

Bayrol

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

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13% Off
9.6

Exceptional

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For perfect pH values
Easy to use
Cristal pH Countersink/minus 1.5 kg
Cristal Plus pH lifter/1 kg

17,95 € 20,85 €(13% Off off)
04

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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9.5

Excellent

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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 €
05

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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9.4

Excellent

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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 €
06

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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9.3

Excellent

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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 €
07

Cristal

Wasserpflege pH-Plus Granulat 5 kg

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9.1

Excellent

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Main highlights

pH value stabilization: the buffer effect of the granules stabilises the pH value in the long term and thus ensures an even water quality.
Tip for hard water: For hard water from 10° dH, we recommend adding the Cristal hardness stabiliser to prevent limescale precipitation and deposits and maximise the efficiency of the pH lifter.
Quick and effective: the easily soluble, alkaline reacting granules ensure a quick and effective lifting of the pH value. Ideal for maintaining an optimal pH of 7.0 - 7.4, which is the basis for all further care measures.
Material: the Cristal pH lifter is particularly gentle on materials and prevents corrosion, which increases the life of your pool system.
Easy to use: add the Cristal pH lifter portions directly into the pool water with the circulation pump running. To raise the pH by 0.1, dose 100 g of granules per 10 m³ of water. Check the pH value after complete dissolution and mixing of the granules.
Easy to use: Cristal pH lifter is characterised by easy handling and high chemical purity, which ensures easy and safe use.

21,94 €
08

Cristal

CRISTAL pH Lifter & pH Reducer Set 11 kg - Complete Solution for Perfect Water Care - For Pools & Hot Tubs - Easy to Use

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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

Suitable for pools and whirlpools: universal use for all types of pools and hot tubs - perfect for private applications.
Protection for technology and materials: prevents corrosion and limescale deposits and extends the life of your pool or whirlpool technology.
Highly effective formula: ensures a stable pH between 7.0 and 7.4 - ideal for clear and hygienic water.
Easy dosage: practical and user-friendly application for quick and effective water care.
Complete set for optimal water quality: contains pH lifter and pH reducer to precisely regulate the pH value of your pool or hot tub water.

39,95 €
09

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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8.9

Very Good

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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 €
10

POOL Total

Cristal Water Care Set – Chlorine Granules 1 kg – pH Lifter 1 kg – pH Reducer 1.5 kg – Algae Prevention 1 Litre – Care Booklet – Complete Care Pool Whirlpool

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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

Quality: Cristal products are known for their high quality and effectiveness and offer a reliable solution for the care of your private pool or pool.
Note: use biocidal products carefully. Always read the label and product information before use. BAuA Reg. No: N-31836 Keep the product out of reach of children.
Easy to use: all products are easy to dose and use. The enclosed Cristal water care guide provides clear instructions on how to use the products effectively.
Comprehensive pool cleaning: this 4.5 kg set with highly concentrated chlorine granules ensures reliable disinfection and clean pool water in all pool types from 1,000 to 20,000 litres.
ALGAE PREVENTION: Contains 1 litre of algae preventive agent that effectively stops the growth of algae and ensures longer freshness and clarity of the water.

37,95 €