Spa Chemicals & Spa Care

Keep your spa water clean and balanced with high-quality products from The Spa Shop. Our range includes sanitisers, clarifiers, pH balancers, and shock treatments—designed for all spa types. Shop now for fast delivery across New Zealand!

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  • BioGuard Spa Sanitiser

    BioGuard Spa Sanitiser

    BioGuard Spa Sanitiser – Powerful Chlorine Protection for Crystal-Clear Water Keeping your spa water safe, clean, and inviting has never been easier with BioGuard Spa Chlorine Sanitiser. This high-quality chlorine-based sanitiser is specially formulated to eliminate bacteria, viruses, and organic contaminants, ensuring a hygienic...
    $65.00
    $65.00
  • BioGuard Armour

    BioGuard Armour

    BioGuard Armour – Dual-Action Spa Chlorine & Oxidiser for Outdoor Spas Designed specifically for outdoor spas, BioGuard Armour is a powerful chlorine-based spa sanitiser and oxidiser that delivers superior water clarity and protection. This dual-action formula not only eliminates bacteria, algae, and organic contaminants...
    $48.00
    $48.00
  • BioGuard Symmetry - The Spa Shop

    BioGuard Symmetry

    BioGuard Symmetry – Premium Bromine Tablets for Spa PoolsKeep your spa water crystal clear and sanitised with BioGuard Symmetry, a high-quality bromine tablet solution specially designed for spa and hot tub use. Ideal for New Zealand spa owners who prefer a gentler, low-odour alternative...
    $49.00
    $49.00
  • Freshwater_GranulesHotSpring Spas Freshwater Concentrated Chlorine Granules - The Spa Shop

    HotSpring Spas Freshwater Concentrated Chlorine Granules

    Fast-dissolving chlorine for crystal-clear spa water.FreshWater Concentrated Chlorine Granules offer a powerful and convenient way to sanitise your spa or hot tub. This premium-grade chlorine works quickly to destroy bacteria and control algae, helping you maintain sparkling clean water with ease. Effective sanitation and...
    $75.00
    $75.00
  • Simple Silver

    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
  • Spa Chlorine

    CW SPA CHLOR

    Stabilised Chlorine Granules (Dichlor) - direct addition no pre-dissolve required   Available Size Options: 1kg . 2kg . 
    $27.00
    $27.00
  • CW Spa Shoc Shot Pills 1kg

    Spa Shoc Shot Pills

    After each use of the spa, a shock should be added to neutralise germs and oxidise contaminants. Shock Shot pills is a ready to use dose designed for this purpose. Conienaint and fast dissolving simply pop one into the filter box with the pump...
    $27.00
    $27.00
  • Aqua Pure Spa Shock & Sanitiser 1kg - The Spa Shop

    Aqua Pure Spa Shock & Sanitiser 1kg

    AquaPure Spa Shock & Sanitiser is a high oxidiser and low chlorine level product designed to remove unwanted organics and bacteria, keeping your spa water safe and crystal clear. Because it has multi-action chlorine with built-in clarifiers and water conditioners, it makes spa care...
    $41.40
    $41.40
  • Aqua Pure Spa Shock - The Spa Shop

    Aqua Pure Spa Shock

    AquaPure Spa Shock & Sanitiser AquaPure Spa Shock & Sanitiser is a fast-acting, multi-purpose oxidiser and sanitiser designed to keep spa water healthy and crystal clear. Because it contains a high oxidiser level and low chlorine content, it works as an instant shock treatment,...
    $30.70
    $30.70
  • Aqua Pure Spa Activate 1.5kg - The Spa Shop

    Aqua Pure Spa Activate 1.5kg

    Aqua Pure Spa Activate is a high-performance granulated blend designed for regular spa use. It helps ensure fast and effective setup and sanitisation of spa water, keeping it clean, balanced, and ready for use. This easy-to-use formula conditions your spa water in a single...
    $42.60
    $42.60
  • Crystal Water H2OK 1L

    CW H2OK 1L

    H2OK Non Chlorine Treatment for Spas and Pools (works in partnership with O2 Shock)
    $32.00
    $32.00
  • Purity

    Purity

    Purity BioGuard SPA Purity is a unique patented blend of oxidising and clarifying agents designed to eliminate chloramines and musty odours. Keeps water sparkling by quickly eliminating undesirable compounds. Easy maintenance. Allows bathers back in the spa within one hour.
    $82.00
    $82.00
  • Pure Soak Mineral Sanitiser Stick - The Spa Shop

    Pure Soak Mineral Sanitiser Stick

    Easy spa care with fewer chemicals.The Pure Soak Mineral Sanitiser Stick offers a simple, low-maintenance way to keep your spa water clean and fresh. Using natural minerals like silver and copper, it helps control bacteria and algae, reducing your reliance on chlorine or bromine...
    $42.00
    $42.00
  • FreshWater Mineral Spa Sanitizer- Continuous Silver Ion

    FreshWater Mineral Spa Sanitizer- Continuous Silver Ion

    FreshWater Ag+ Continuous Silver Ion Sanitizer  Overview This FreshWater Sanitizer can help your spa look in tip-top shape at all times. The FreshWater Ag+ Continuous Silver Ion Cartridge helps keep spa water clean and crystal clear. What’s in the box  1 x FreshWater Ag+...
    $62.00
    $62.00
  • Frog Bromine Cartridge 150g

    Frog Bromine Cartridge

    The SPA FROG® In-Line System enhances a standard hot tub up to 600 gallons with its patented delivery of minerals and a low dose of bromine. This hot tub Fresh Mineral Water® system eliminates the need for daily maintenance & chlorination, improves spa water quality and removes the unmistakable smell of chlorine, all the while...
    $54.00
    $54.00
  • Frog Mineral Cartridges

    Frog Mineral Cartridges

    A select group of hot tub manufacturers have built the SPA FROG Fresh Mineral Water hot tub system into their hot tubs, up to 600 gallons, making caring for your water even easier. The SPA FROG In-Line Fresh Mineral Water® system offers water care that...
    $85.00
    $85.00
  • CW Bromine Tablets 1kg

    CW Bromine Tablets 1kg

    CW Bromine Tablets – 20g Chlorine-Free Sanitiser for Spa PoolsKeep your spa water clean, clear, and comfortable with CW Bromine Tablets, the reliable and budget-friendly bromine tablet solution for New Zealand spa pools. Each tablet weighs 20 grams, offering a slow and consistent dissolve...
    $44.00
    $44.00
  • CW Spa Brilliance 1KG

    CW Spa Brilliance 1KG

    Crystal Water Spa Brilliance is a premium water clarifier designed to restore sparkle and clarity to your spa or hot tub. It works by binding together tiny particles that cloud your water, allowing them to be easily trapped in the filter. The result? Crystal-clear...
    $25.00
    $25.00
  • Aqua Pure Spa Bromine Sanitiser - The Spa Shop

    Aqua Pure Spa Bromine Sanitiser

    AquaPure Spa Bromine Sanitiser – 1kg / 2kg AquaPure Spa Bromine Sanitiser is a reliable and effective sanitiser for your spa, providing consistent water hygiene without the issues associated with traditional chlorine-based sanitisers. It is fully soluble, slow dissolving, and contains no calcium, so...
    $69.00
    $69.00
  • Silver_Cove

    Silver Cove Spa Pool Sanitiser

    Silver Cove Spa Pool Sanitiser – Clear, Hygienic Water Made SimpleKeeping your spa water clean and inviting is effortless with Silver Cove Spa Pool Sanitiser. This high-performance sanitiser is specially formulated to eliminate bacteria, algae, and organic contaminants, leaving your water sparkling and safe...
    $50.00
    $50.00
  • FreshWater 5-way Test Strips

    FreshWater 5-way Test Strips

    Keep your spa water balanced and crystal clear with HotSpring FreshWater 5-Way Test Strips. These easy-to-use strips let you quickly check five essential water parameters in seconds – Free Chlorine, Total Bromine, pH, Total Alkalinity, and Total Hardness. Simply dip a strip in your...
    $30.00
    $30.00
  • Insta Test 4plus Spa

    Insta Test 4plus Spa

    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...
    $38.00
    $38.00
  • Freshwater Salt Test Strips

    Freshwater Salt Test Strips

    Freshwater Salt Test Strips These Test Strips are designed for HotSprings ACE Salt Water Sanitizing system. Measure amount of Salt in the spa. 25 Test Strips.
    $28.00
    $28.00
  • Freshwater Cover Shield - The Spa Shop

    Freshwater Cover Shield

    Freshwater Cover Shield from Hot Spring Spas cleans, shines, and protects your vinyl spa cover surface. Cleans, shines and protects vinyl cover surfaces Repels water, dust and dirt Forms a protective shield on your vinyl spa cover Helps resists fading, stains and dirt Repeated...
    $45.00
    $45.00
  • 303 Aerospace Protectant 473ml

    303 Aerospace Protectant 473ml

    303 Aerospace Protectant is used to protect against harmful UV rays that cause discolouration, fading, embrittlement, cracking, chalking. No other product provides this much protection for your boat and water gear. Simply spray the treatable surface with Aerospace protectant and wipe it in. Once...
    $45.00
    $45.00
    $45.00
  • BioGuard Filter Renew

    Filter Renew (Spray Bottle)

    BioGuard SPA Filter Renew 750mlCleans oil and grease from all types of filters, improving efficiency and lengthening the life of the filter media. Spay bottle.
    $45.00
    $45.00
  • Aqua Pure Spa Cartridge Cleaner 500g - The Spa Shop

    Aqua Pure Spa Cartridge Cleaner 500g

    Aqua Pure Spa Cartridge Cleaner is specially formulated to clean and degrease spa and swimming pool filter cartridges. It removes body fats, oils, and dirt without leaving any chlorine residue, helping to maintain clean and healthy water in your spa. Regular cleaning of filter...
    $28.40
    $28.40
  • FreshWater Instant Filter Cleaner

    FreshWater Instant Filter Cleaner

    FreshWater Instant Filter Cleaner extends filter life by removing oils, minerals and debris. Us monthly to keep filters in their best operating condition. This product is compatible with all sanitizers, including bromine, chlorine and biguanide. Directions: Remove filter element form filter housing and rinse...
    $49.00
    $49.00
  • Crystal Water 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
  • BioGuard Swirl Away Pipe Cleaner 500ml

    BioGuard Swirl Away Pipe Cleaner 500ml

    BioGuard Swirl Away Swirl Away is a specially formulated cleaner for removing waste and scale build-up in spas and their plumbing. Prevents scale build-up in plumbing lines and jets. Breaks down body oils and other organic wastes. Prevents re-deposition of solids in pipes. Promotes...
    $34.00
    $34.00
  • BioGuard Foam Go 500g

    BioGuard Foam Go 500g

    BioGuard Foam Go BioGuard SPA Foam Go eliminates foaming in spas and pools with attached spas. Eliminates unsightly foam instantly.
    $45.00
    $45.00
  • Aqua Pure Spa Anti Foam 500ml - The Spa Shop

    Aqua Pure Spa Anti Foam 500ml

    Aqua Pure Anti-Foam is a fast-acting foam suppressing agent designed to instantly treat and eliminate unsightly spa foam. Foaming is common in spas, hot tubs, and hydrotherapy pools, and is often caused by impurities such as lotions, detergents, oils, and other residues that build...
    $30.50
    $30.50
  • BioGuard Defence

    BioGuard Defence

    Defence BioGuard SPA Defence prevents staining and water discolouration from metals, and scale build-up from excessive calcium. Prevents scale build-up. Helps keep spa water clear. Removes some fresh metal stains. Protects spa surfaces.
    $42.00
    $42.00
  • BioGuard Crystal Clear

    Crystal Clear

    Crystal Clear BioGuard SPA Crystal Clear is specifically designed for clarifying cloudy water in spas. Makes water clear and sparkling. Concentrated formula saves time and money. Easy to use.
    $35.00
    $35.00
  • Aqua Pure Spa Water Clarifier 500ml - The Spa Shop

    Aqua Pure Spa Water Clarifier 500ml

    Aqua Pure Spa Water Clarifier is a highly effective solution for keeping spa water crystal clear and visually inviting. It works by binding to tiny particles that cause cloudy water, allowing them to be filtered out easily. Simply add the clarifier as needed to...
    $27.14
    $27.14
  • BioGuard Squeaky Clean 500ml

    BioGuard Squeaky Clean 500ml

    Squeaky Clean BioGuard SPA Squeaky Clean is a heavy-duty alkaline surface cleaner that removes scale, hard water deposits, fresh stains, grease and dirt from along the water line. Cleans spa surfaces without damaging them. Makes cleaning easier. Keeps spa surfaces clean and bright.
    $37.00
    $37.00
  • BioGuard Velvet 1kg

    BioGuard Velvet 1kg

    Velvet BioGuard SPA Velvet is a multifunctional granular product that enhances water comfort, increases water clarity, improves the performance of other products. Enhances water comfort and clarity. Nourishes skin and hair. Reduces incidence of skin and eye irritation. Improves chemical efficiencies. Protects metal surfaces...
    $49.00
    $49.00
  • BioGuard Performance Up 500g

    BioGuard Performance Up 500g

    BioGuard Performance Up BioGuard SPA Performance Up raises Total Alkalinity to help prevent equipment corrosion and surface damage and helps control the pH. Protects the pH from being influenced by factors such as rain, bather load and other chemical applications. Prevents corrosion of equipment....
    $19.00
    $19.00
  • BioGuard Comfort Up 500g

    BioGuard Comfort Up 500g

    BioGuard Comfort Up BioGuard SPA Comfort Up raises pH to help prevent equipment corrosion, surface damage, and skin and eye irritation. Prevents corrosion of equipment. Protects spa surface. Raises pH. Reduces potential of skin and eye irritation.
    $16.00
    $16.00
  • BioGuard Aquality 750g

    BioGuard Aquality 750g

    BioGuard Aquality BioGuard SPA Aquality slowly lowers pH and decreases Total Alkalinity to help prevent scale build-up, cloudy water and eye irritation. Lowers pH and Total Alkalinity. Helps improve chlorine/bromine efficiency. Prevents corrosion of equipment. Reduces the risk of scale formation.
    $24.00
    $24.00
  • BioGuard Shield 450g

    BioGuard Shield 450g

    BioGuard Shield – Calcium Increaser for Spa Pools and Hot TubsProtect your spa and extend its lifespan with BioGuard Shield, a high-quality calcium increaser designed to raise calcium hardness in spa pools and hot tubs. Low calcium levels can lead to corrosive water, causing...
    $20.00
    $20.00
  • Aqua Pure Spa Hardness Increaser 500g - The Spa Shop

    Aqua Pure Spa Hardness Increaser 500g

    Aqua Pure Spa Hardness Increaser raises the hardness of spa water by increasing the concentration of dissolved calcium. Maintaining the correct calcium level helps protect concrete-based spa walls, mortar, and tile grout from pitting and erosion. Proper hardness also contributes to water clarity and...
    $11.85
    $11.85
  • BioGuard Perfect Balance 1L

    BioGuard Perfect Balance 1L

    Perfect Balance  Perfect Balance is an alternative buffer that maintains a stable pH, softens water and inhibits corrosion in spas and hot tubs  Benefits  Protects the pH from being influenced by factores such as rain, bether load and other chemical applications  Prevents corrosion of...
    $72.00
    $72.00
  • FreshWater pH/Alkalinity Up

    FreshWater pH/Alkalinity Up

    Prevents pH bounce and deterioration of spa surface and fittings from low total alkalinity.  The ideal range of Total Alkalinity in a spa is 180-120 parts per million.  This product is used to raise the Total Alkalinity and pH of spa water.
    $34.00
    $34.00
  • Aqua Pure Spa Water pH & Alk Increaser 500g - The Spa Shop

    Aqua Pure Spa Water pH & Alk Increaser 500g

    AquaPure Spa pH & Alk Increaser raises both the pH and Total Alkalinity of spa water, helping to keep water balance stable. When alkalinity is too low, water can become corrosive and the pH becomes difficult to control. This product acts as a pH...
    $11.60
    $11.60
  • CW PH Increase 1kg

    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 Buffer 1kg

    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. Available Size Options: 1kg . 2kg . 4kg . 10kg . 25kg . 
    $19.00
    $19.00
  • CW PH Buffer 2kg

    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
  • Freshwater pH/Alkalinity Down

    Freshwater pH/Alkalinity Down

    FreshWater pH/Alkalinity Down is designed to lower high pH and total alkalinity levels in your spa or hot tub water. When these levels are too high, water can become cloudy and uncomfortable—leading to skin and eye irritation, reduced sanitiser effectiveness, and scale build-up on...
    $38.00
    $38.00
  • Aqua Pure Spa pH Down 500g - The Spa Shop

    Aqua Pure Spa pH Down 500g

    AquaPure Spa pH Down is a fast-dissolving pH reducer designed to safely and effectively lower pH in spas and swimming pools. Because it dissolves quickly, it spreads evenly throughout the water, making treatment both easy and reliable. It is much safer to handle than...
    $41.40
    $41.40

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