Pool Chemicals & Pool Care

Premium Pool Chemicals for Crystal-Clear Water

Maintain a pristine and healthy swimming pool with The Spa Shop’s high-quality pool chemicals. Our expertly selected range includes:

  • Sanitisers: Powerful solutions to keep your pool water safe and hygienic.
  • Clarifiers: Enhance water clarity for a sparkling, inviting pool.
  • pH Balancers: Ensure perfect water balance for comfort and equipment protection.
  • Shock Treatments: Rapidly restore water quality for a fresh and clean pool.

Suitable for all pool types, our products make maintenance simple and effective. Trust The Spa Shop for expert solutions to keep your pool in top condition.

Shop now for fast delivery across New Zealand!

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  • simplesilver500g

    Simple Silver

    Simplesilver™ - Spa Pool Water Treatment Single product - Easy to use - Just place in the water One step, once a year, for total spa pool enjoyment Just over a dollar a day for 12 months - This 500 gram tablet treats spa...
    $435.00
    $435.00
  • BioGuard Power Chlor 1kg

    BioGuard Power Chlor 1kg

    BioGuard Power Chlor – Fast-Dissolving Pool Chlorine for Superior Water Sanitisation BioGuard Power Chlor is a high-performance pool chlorine designed to keep your swimming pool clean, clear, and free from harmful contaminants. This fast-dissolving granular chlorine effectively eliminates bacteria, algae, and organic debris, ensuring...
    $45.00
    $45.00
  • powerchlor5kg

    BioGuard Power Chlor 5kg

    BioGuard Power Chlor – Fast-Dissolving Pool Chlorine for Superior Water Sanitisation BioGuard Power Chlor is a high-performance pool chlorine designed to keep your swimming pool clean, clear, and free from harmful contaminants. This fast-dissolving granular chlorine effectively eliminates bacteria, algae, and organic debris, ensuring...
    $175.00
    $175.00
  • powerchlor102kg

    BioGuard Power Chlor 10kg

    BioGuard Power Chlor – Fast-Dissolving Pool Chlorine for Superior Water Sanitisation BioGuard Power Chlor is a high-performance pool chlorine designed to keep your swimming pool clean, clear, and free from harmful contaminants. This fast-dissolving granular chlorine effectively eliminates bacteria, algae, and organic debris, ensuring...
    $325.00
    $325.00
  • CW Bromine Tablets 1kg

    CW Bromine Tablets 1kg

    Maintain pristine water quality in your spa or pool with Bromine Tablets. Each 1kg container contains 40 tablets, each weighing 20 grams, providing a reliable and long-lasting source of bromine. This powerful sanitizer effectively eliminates bacteria, algae, and other contaminants, ensuring clean, safe water...
    $44.00
    $44.00
  • swimclear1kg

    BioGuard Swim Clear

    Swim Clear – Fast-Dissolving Stabilised Chlorine for Crystal-Clear Pool Water Swim Clear is a high-quality stabilised granular chlorine designed for both routine pool sanitisation and shock treatments. This powerful chlorine-based solution effectively eliminates bacteria, algae, and organic contaminants, ensuring your pool water remains safe,...
    $35.00
    $35.00
  • swimtabs2kg

    BioGuard Swim Tabs 2kg

    Swim Tabs are sabilised 200g trichlor tablets that can be used in automatic feeders and some floaters for constant chlorinations Benefits  Does not cloud pool water  Slow-dissolving for steady release of chlorinating products 
    $47.00
    $47.00
  • bioguardpacificblue16kg

    BioGuard Pacific Blue Power Tabs 1.6kg

    Pacific Blue Power Tabs are uniquw patented 160g pool tablets that provide optimum sanitation for pools as well as having mulitfuctional capabilities to assist in buffering and clarifying pool water  Ensures sparking clear pool water  Lessskin and eye irritation than many chlorination products  Easy...
    $72.00
    $72.00
  • pacificbluepowertabs8kg

    BioGuard Pacific Blue Power Tabs 8kg

    Pacific Blue Power Tabs are uniquw patented 160g pool tablets that provide optimum sanitation for pools as well as having mulitfuctional capabilities to assist in buffering and clarifying pool water  Ensures sparking clear pool water  Lessskin and eye irritation than many chlorination products  Easy...
    $268.00
    $268.00
  • swimsticks1kg

    BioGuard Swim Sticks 1kg

    Swin Sticks are a slow-dissolving compressed trichlor sanitiser that can be used in automatic feeders and some floaters for constant chlorination  Does not cloud water  Slow-dissolving for steady release of chlorinating compounds 
    $25.00
    $25.00
  • swimsticks10kg

    BioGuard Swim Sticks 10kg

    Swin Sticks are a slow-dissolving compressed trichlor sanitiser that can be used in automatic feeders and some floaters for constant chlorination  Does not cloud water  Slow-dissolving for steady release of chlorinating compounds 
    $225.00
    $225.00
  • burnoutextreme

    BioGuard Burn Out Extreme 600g

    Burn Out Extremes mulitfunctional granules provide a convenitent and economical means for shocking swimming pool sand for treating pools with chlorine demand and or algae problems  Ideal for solving chlorine demand issues  Ensures sparkling clear pool water  Improves filter efficiency  No need to pre-dissolve ...
    $45.00
    $45.00
  • Cw H2Ok 1L Chemicals

    CW H2OK 1L

    H2OK Non Chlorine Treatment for Spas and Pools (works in partnership with O2 Shock)
    $32.00
    $32.00
  • Cw O2 Shock 1Kg Chemicals

    CW O2 Shock 1kg

    Crystal Water O2 Shock – The Chlorine-Free Solution for Sparkling Pool Water Elevate your pool care routine with Crystal Water O2 Shock, a premium non-chlorine oxidiser designed to keep your water fresh and inviting. This 2kg treatment effectively removes contaminants and organic waste, leaving...
    $39.00
    $39.00
  • Cw Calcium Hardener 750Gm Chemicals

    CW Calcium Hardener 750g

    CALCIUM HARDENER (Calcium Chloride)Total water hardness refers to the amount of calcium and magnesium carbonate in the water. If too low CH can cause etching of plaster and metal corrosion. High CH causes scale formation marble discolouration and cloudy water. Available Size Options: 25kg...
    $19.00
    $19.00
  • CW Pool & Spa Filter Cleaner 1L

    CW Pool & Spa Filter Cleaner 1L

    Maintain peak performance and extend the life of your spa or pool filter with Crystal Water Filter Cleaner. This highly effective cleaning solution is designed to remove stubborn dirt, oils, and scale buildup from filter cartridges, ensuring your filtration system works at maximum efficiency....
    $25.00
    $25.00
  • bioguardfilterrenew

    BioGuard Filter Renew (Spray Bottle)

    BioGuard Filter Renew – Effortless Spa Filter Cleaner Maintaining your spa filter is key to keeping your water clean and clear. BioGuard Filter Renew is the perfect solution for removing dirt, oils, and debris accumulate in your spa and pool filters. This powerful yet easy-to-use spray...
    $45.00
    $45.00
  • Bio Guard Filter Brite 250G General

    BioGuard Filter Brite 250g

    Filter Brite BioGuard Filter Brite restores the efficiency of pool water filters by removing scale and rust deposits, greases, oils and organic wastes, whilst sanitising the filter media or cartridge. Improves filtration and circulation to help keep water clear. Lengthens life of the filter....
    $37.00
    $37.00
  • Cw Multi Pills (50 Pills) 1Kg Chemicals

    CW Multi Pills (50 Pills) 1kg

    Multi Pills - Designed to give your pool a four way protection.  They provide a source of chorine to sanitise pool water, stabilize chlorine from UV degradation, flocculate suspended soils and inhibit the growth of algae.
    $27.00
    $27.00
  • Cw Ph Increase 1Kg Chemicals

    CW PH Increase 1kg

    (Soda Ash) Neutral water has a pH of 7.0. A pH reading below 7.0 indicates the water is acidic and a reading above 7.0 indicates the water is alkaline. Available Size Options: 1kg . 2kg . 4.5kg . 25kg . 
    $19.00
    $19.00
  • Cw Ph Increase 2Kg Chemicals

    CW PH Increase 2kg

    (Soda Ash) Neutral water has a pH of 7.0. A pH reading below 7.0 indicates the water is acidic and a reading above 7.0 indicates the water is alkaline.   Available Size Options: 1kg . 2kg . 4.5kg .25kg . 
    $28.00
    $28.00
  • Cw Ph Buffer 1Kg Chemicals

    CW PH Buffer 1kg

    (Sodium Bicarbonate) Low Total Alkalinity (TA) levels can lead to corrosion & staining also making it difficult to control sudden changes in pH. High TA levels can cause cloudiness eye irritation & scale. 
    $19.00
    $19.00
  • Cw Ph Buffer 2Kg General

    CW PH Buffer 2kg

    (Sodium Bicarbonate) Has the ability of resisting changes in the pH levels of water and buffers the water from wild pH swings. It will raise the Total Alkalinity in pools and spa pools. Usually the first product added to start the treatment of the...
    $25.00
    $25.00
  • Cw Ph Decrease 1Kg Chemicals

    CW PH Decrease 1kg

    (Sodium Bisulphate) Neutral water has a pH of 7.0. A pH reading below 7.0 indicates the water is acidic and a reading above 7.0 indicates the water is alkaline.
    $19.00
    $19.00
  • Cw Ph Decrease 2Kg Chemicals

    CW PH Decrease 2kg

    (Sodium Bisulphate) Neutral water has a pH of 7.0. A pH reading below 7.0 indicates the water is acidic and a reading above 7.0 indicates the water is alkaline.  
    $28.00
    $28.00
  • Salte Ph Decrease Tablets 200G 5Tablets/Tube - 1Kg/Tube Chemicals

    Salte PH Decrease Tablets 200g Tablets 5 Tablets/Tube - 1kg/Tube

    $22.00
    $26.00
    $22.00
  • stabiliser1kg

    BioGuard Stabiliser 1kg

    Stabiliser is a granular cyanuric acid that prevents chlorinating product loss due to sunlight  Benefits  Reduces chlorine consumption  Reduces maintance costs Ideal for outdoor swimming pools 
    $25.00
    $25.00
  • Bioguard Stabiliser 2Kg General

    BioGuard Stabiliser 2kg

    Stabiliser is a granular cyanuric acid that prevents chlorinating product loss due to sunlight  Benefits  Reduces chlorine consumption  Reduces maintance costs Ideal for outdoor swimming pools 
    $42.00
    $42.00
  • bioguard-balance-pak-100-2kg

    BioGuard Balance Pak 100

    Balance Pak 100 is a soluble powder that eliminates pH bounce and raised Total Alkalinity  Protects the pH form being influenced by factors such as rain, seimmer load and other chemical application  Prevents corrosion of equipment and metal fittings  Size 2kg 4kg 8kg 10kg 
    $26.00
    $26.00
  • bioguard-balance-pak-200-2kg

    BioGuard Balance Pak 200

    Balance Pak 200 is a soluble pH increaser that is suitable for all pool types Prevents corrosion of equipment and metal fittings  Prevents etching of concrete and grout and weinkling liners Prevents eye irritation due to low pH  Size 2kg 4kg
    $26.00
    $26.00
  • balance-pak-300

    BioGuard Balance Pak 300

    BioGuard Balance Pak 300 is a soluble calcium hardness increaser. Prevents etching and roughness of plaster finishes from low calcium. Prevents corrosion of equipment and metal fittings.
    $37.00
    $37.00
  • bioguard-pool-completebioguard-pool-complete-2l

    BioGuard Pool Complete

    The BioGuard Pool Complete is an all-in-one solution designed to keep your pool looking stunning. With its advanced 3-in-1 formula, Pool Complete enhances water clarity, removes unwanted contaminants, and prevents dull water appearance. Its weekly application ensures your pool stays sparkling clean with minimal...
    $120.00
    $120.00
  • No. 2 solution - pH for 6-in-1 Kit and Wet Lab

    No. 2 solution - pH for 6-in-1 Kit and Wet Lab

    No. 2 – Phenol Red solution. Larger vial used to test ‘pH’.
    $6.50
    $6.50
  • No. 4 Solution - Chlorine Neutraliser for 6-in-1 Kit

    No. 4 Solution - Chlorine Neutraliser for 6-in-1 Kit

    No. 4 – Solution to neutralise chlorine.
    $10.50
    $10.50
  • No. 5 Solution - Total Alkalinity for 6-in-1 Kit

    No. 5 Solution - Total Alkalinity for 6-in-1 Kit

    No. 5 – Methyl Orange solution used in testing ‘total alkalinity’ levels.
    $5.90
    $5.90
  • Aquachek Test Strips Yellow 4:1 (50 In Bottle) Chemicals

    Aquachek Test Strips Yellow 4:1

    Aquachek 4 Way Test - Free Chlorine PH Total Alkalinity Cyanuric Acid. 50 Test Strips 
    $30.00
    $30.00
  • Aquachek Test Strips Gold 7:1 Refill Chemicals

    Aquachek Test Strips Gold 7:1 Refill

    Aquachek 7 Way Test - Total Bromine Total Chlorine Free Chlorine Calcium Hardener PH Total Alkalinity Cyanuric Acid 50 in Bottle
    $40.00
    $40.00
  • Aquachek Test Strips Salt Chemicals

    Aquachek Test Strips Salt

    Aquachek Test - Salt (Sodium Chloride) - 10 in Bottle
    $34.00
    $34.00
  • Insta Test Pool 4 Chemicals

    Insta Test Pool 4

    The New "PLUS" 1-dip formula that allows the user to just dip the strip into the water and receive accurate, instant w availableresults. The new formula is designed for stable color development to allow adequate time for the user to match very distinct colors...
    $35.00
    $35.00
  • Aquachek Test Strips Gold 7:1 (Clamshell) Chemicals

    Aquachek Test Strips Gold 7:1

    Aquachek 7 Way Test - Total Bromine Total Chlorine Free Chlorine Calcium Hardener PH Total Alkalinity Cyanuric Acid 50 in Bottle  
    $56.00
    $56.00
  • DPD No.4 Testing Tablets

    DPD No.4 Testing Tablets

    Description: DPD No 4  Testing Tablets   (DPD) tablet 4 dissolves rapidly to determine the TOTAL chlorine or bromine content of your pool   . It reacts with the pool water sample, changing its colour in various shades of red—the deeper the colour, the higher the concentration...
    $5.40
    $5.40
  • Pacific Swimming Pool Salt 20Kg General

    Pacific Swimming Pool Salt 20kg

    This pool salt has been specially prepared for chlorine generation in domestic pools fitted with salt chlorinators. Ideal for swimming pools fitted with salt water chlorinators High purity sea salt specially refined 20kg bag Special shipping rates may apply.
    $20.00
    $20.00
  • BioGuard Salt Pool Sparkle 45016

    BioGuard Salt Pool Sparkle 45016

    The BioGuard Salt Pool Sparkle is specially formulated to maintain the clarity and brilliance of saltwater pools. This advanced solution targets common issues in salt pools, such as cloudy water and organic contaminants, ensuring your pool remains clean and inviting. By enhancing the filtration...
    $29.00
    $29.00
  • saltcellcleaner

    BioGuard Salt Cell Cleaner 946ml

    BioGuard Salt Cell Cleaner BioGuard Salt Cell Cleaner is designed to effectively clean chlorinator cells of scale deposits and other material without damaging the cell. Product Features:  200g/L hydrochloric acid. Formulated for salt cells. Removes scale build-up from salt cells. Fast acting Benefits:  Cell...
    $25.00
    $25.00
  • saltpoolprotectorii

    Salt Pool Protector II 946m

    Salt Pool Protector II BioGuard Salt Pool Protector II is a highly effective algae inhibitor that works extremely well with salt chlorinators to prevent and kill a broad variety of algae. Product Features:  40g/L copper present as copper sulphate. Unique patented non-staining formulation. More...
    $92.00
    $92.00
  • BioGuard Salt Pool Stabiliser 2Kg

    BioGuard Salt Pool Stabiliser 2Kg

    Salt Pool Stabiliser is a granular cyanuric acid for use in salt chlorinated systems that prevents chlorining loss due to sunlight and prolongs salt cell life. Product Features:  1000g/kg cyanuric acid. Storage and transport friendly. Benefits:  Reduces maintenance costs. Reduces chlorine consumption. Extends life...
    $45.00
    $45.00
  • Quick Clear General

    BioGuard Quick Clear

    Quick Clear BioGuard Quick Clear assists in restoring the sparkle and polish to swimming pool water, and is particularly suited to removing suspended minerals and dead algae. Makes water clear and sparkling.  Helps remove metals to prevent staining.  Improves filter performance. 
    $68.00
    $68.00
  • Polysheen Plus General

    Polysheen Plus

    Polysheen Plus BioGuard Polysheen Plus is a highly concentrated product that combines small particles into larger ones, making it much easier for the filter to remove debris and insoluble compounds. Restores the sparkle to your water. Easy to use. Excellent as a problem solver...
    $60.00
    $60.00
  • bioguard-lo-n-slo-1-5kg

    BioGuard Lo ‘N’ Slo 1.5kg

    Lo'n'Slo is a granular product designed to decrease Total Alklinity and pH levels in pool water to prevent, cloudy water, scale formation, high acid demand and poor chlorine effciency, Product Features  Lowers Total Alalinity and pH for all pool types and Mirco granule that...
    $24.00
    $24.00
  • bioguard-lo-n-slo-5kg

    Bioguard Lo ‘N’ Slo 5kg

    BioGuard Lo’N’Slo is a granular product designed to decrease Total Alkalinity and pH levels in pool water to prevent cloudy water, scale formation, high acid demand and poor chlorine efficiency. Product Features: 1000g/kg sodium hydrogen sulphate. Lowers Total Alkalinity and pH. For all pool...
    $57.00
    $57.00
  • chemout

    BioGuard Chem Out 600grams

    Reduces excess leavels of Chlorine and Bromine is swimming pools and spas Helps prodect pool and spa equipment  No pre-dissolving required  Suitable for all types of pools and spas   
    $21.00
    $21.00
  • BioGuard Oxysheen 3.8kg

    BioGuard Oxysheen 3.8kg

    BioGuard Oxysheen – Fast-Acting Chlorine-Free Shock Revitalise your pool water with BioGuard Oxysheen, a powerful chlorine-free oxidiser. This fast-acting formula eliminates organic contaminants, restoring water clarity without affecting chlorine levels. Ideal for regular maintenance, Oxysheen keeps your pool sparkling and ready for use. Why...
    $275.00
    $275.00
  • Sizzling Summer Chemical Kit

    Sizzling Summer Chemical Kit

    The Sizzling Summer Kit includes all the key products you need to get your swimming pool into shape for the swimming season. Use in conjunction with your preferred pool sanitiser, the Sizzling Summer Kit will help kickstart your swimming season. DATED STOCK - PRICE REDUCED!...
    $40.00
    $110.00
    $40.00
  • Iq Maxi Clear Skimmer Tablet 1X125G General

    IQ Maxi Clear Skimmer Tablet 1x125g

    IQ Maxi Clear Skimmer Tablets. Aid in the coagulation and removal of organic and inorganic wastes that can cause dull and cloudy pool water. 1x 125g Tablet  
    $12.00
    $12.00
  • Crystal Cube Plus+ 170g 2 Pk

    Crystal Cube Plus+ 170g 2 Pk

    Aussie Gold Crystal Cube Plus+ 170g Pack of 2 Clarifier CubesPlastic wrappingSuitable for pool owners and operatorsContains phosphate removerOne cube in the skimmer basket keeps pool water clear sparkling for up to four weeks
    $24.00
    $24.00
  • BioLab Pool Tonic 946ml

    BioLab Pool Tonic 946ml

    BioLab Pool Tonic removes phosphate and at least 10 other unwanted contaminants for a stress-fee pool  Product Features Removes phosphate, a food source for alge and other inwnated contaminants form pool water Clarifies pool water Binds particles that are too small for normal fitration...
    $89.00
    $89.00
  • phoskill

    BioGuard Phos Kill 1L

    BioGuard Phos Kill will remove phosphates (a major food course for algse) from pool water, preventing algea growth  Using this product makes pool sanitation more effcient against green pools, reduceing chlrine consumption  Product features  Prevents elgea frowth by removing phospates a major food source...
    $52.00
    $52.00
  • BioGuard Polygard Concentrate 946ml

    BioGuard Polygard Concentrate 946ml

    Polygard Concentrate is a non-foaming polyquat algae preventative and algascide that is excellent for use in pools with attached spas, fountains or jetted returns
    $102.00
    $102.00
  • BioGuard AlgiGuard 1L

    BioGuard AlgiGuard 1L

    AlgiGuard is a highly effective quat-based algaecide that lowers surface tension to help repel ducks and insects It also works well with chlorinating productss to prevent a wide varity of algae
    $39.00
    $39.00
  • BioGuard Algi Destroyer

    BioGuard Algi Destroyer

    Algi Destroyer is an effective destroyer of stubborn algae infestations especially green and black spot algea  By combingin two active ingredients into one formula, a double action attack eradicates algae swiftly and successfully  Being a non-metal algaecide is ideal for use with vinyl-lined pools...
    $105.00
    $105.00
  • Bioguard Msa Extreme General

    BioGuard MSA Extreme

    MSA Extreme BioGuard MSA Extreme is a patented, non-staining, highly concentrated copper-based algaecide powerful enough to kill all types of algae in swimming pools. It is formulated to insure against instances of ‘green hair’, water discolouration and pool surface staining so often encountered with...
    $92.00
    $92.00
  • Pool Magnet Plus General

    Pool Magnet Plus

    Pool Magnet Plus BioGuard Pool Magnet Plus is a chelating agent that binds iron, copper and manganese in the water to prevent them from being oxidised and staining the pool surface or discolouring the water. Liquid chelating agent. When used according to label instructions,...
    $72.00
    $72.00
  • ProGuard Calcium Chloride 25kg

    ProGuard Calcium Chloride 25kg

    740g/kg calcium chloride. Soluble calcium hardness increaser. Granular formulation allows for faster dissolving. Less likely to cloud the water on application. No pre-dissolving. Non-dangerous good. Prevents corrosion of equipment. Prevents etching of plaster and wrinkling of liners. Storage and transport friendly. Pick up from...
    $66.00
    $66.00
  • ProGuard Sodium Bicarbonate 25k

    ProGuard Sodium Bicarbonate 25k

    1000g/kg sodium hydrogen carbonate (sodium bicarbonate). Raises total alkalinity. For all pool types. Classified as non-dangerous good. Protects the pH from being influenced by factors such as rain, swimmer load, and other chemical application. Prevents corrosion of equipment. Storage and transport friendly. Pick up...
    $72.00
    $72.00