Spa Chemicals & Spa Care

Premium Spa Chemicals for Optimal Relaxation

Keep your spa water clean, clear, and perfectly balanced with The Spa Shop’s high-quality spa chemicals. Our range includes:

  • Sanitisers: Effective solutions for safe, hygienic water.
  • Clarifiers: Achieve sparkling, crystal-clear water.
  • pH Balancers: Maintain the perfect water balance.
  • Shock Treatments: Quickly restore water quality.

Designed for all spa types, our products make maintenance easy and effective. Trust The Spa Shop for expert solutions to enhance your spa experience.

Shop now for fast delivery across New Zealand!

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  • bioguard-spa-sanitiser

    BioGuard Spa Sanitiser

    The BioGuard Sanitiser is an essential solution for maintaining a safe and healthy swimming environment. Specially designed to eliminate harmful bacteria and contaminants, it ensures your pool water stays crystal clear and hygienic. Its fast-dissolving formula works quickly and efficiently, making it ideal for...
    From $35.00
    From $35.00
  • BioGuard_Armour

    BioGuard Armour

    BioGuard SPA Armour is fast-dissolving, totally soluble granular product that can be used as a sanitiser and an oxidiser in outdoor spas. As it can be used as a sanitiser and an oxidiser there is no need for two products. May be added directly...
    From $48.00
    From $48.00
  • Freshwater Silver Ion Catridge

    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+...
    $60.00
    $60.00
  • hotspringspachlorine

    Freshwater Concentrated Chlorine Granules 907g

    The Freshwater Concentrated Chlorinating Granules is a popular efficient sanitiser that is completely soluble and nearly pH neutral. Bottle weighs 2lbs. (907 g).
    $65.00
    $65.00
  • simplesilver500g

    Simple Silver

    Simple Silver 500g – The Eco-Friendly Water Balancer You Can Rely On Maintain pure, balanced, and eco-friendly spa water with Simple Silver. This powerful, silver ion-based treatment effectively keeps your spa water clean by eliminating harmful bacteria and preventing algae growth. As a sustainable...
    From $435.00
    From $435.00
  • Spa_Chlor

    CW SPA CHLOR

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

    CW Spa Shoc Shot Pills 1kg

    Revitalize your spa with Crystal Water Spa Shoc Shot, a powerful and fast-acting sanitizer designed to quickly restore water clarity and balance. This innovative product is formulated to deliver an immediate boost to your spa’s sanitation system, effectively neutralizing contaminants, removing impurities, and enhancing...
    $27.00
    $27.00
  • bioguardpurity

    BioGuard Purity

    BioGuard Purity – Powerful Spa Shock for Clean, Clear Water Ensure your spa water stays crystal clear with BioGuard Purity. This 50g sachet is designed to quickly eliminate organic contaminants, such as oils, lotions, and body waste, that can cloud the water and cause...
    From $8.00
    From $8.00
  • Frog Bromine Cartridge Chemicals

    Frog Bromine Cartridge 150g

    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...
    $40.00
    $40.00
  • BioGuard Symmetry

    BioGuard Symmetry

    Symmetry BioGuard SPA Symmetry can be used in automatic feeders or floaters for sanitising spas. When used as directed, its slow, consistent dissolving rate provides a constant and reliable sanitiser level at all times. Controls bacteria and algae in spas. Ideal for indoor spas,...
    From $49.00
    From $49.00
  • 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
  • Cw Spa Brilliance 1Kg Chemicals

    CW Spa Brilliance 1kg

    ransform your spa experience with Spa Brilliance, a premium water treatment solution designed to enhance the clarity and quality of your spa water. This advanced formula works by removing impurities and contaminants, ensuring a sparkling clean and inviting spa. Spa Brilliance also helps to...
    $25.00
    $25.00
  • Frog Mineral Cartridges Chemicals

    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...
    $78.00
    $78.00
  • freshwater5wayteststrips

    FreshWater 5-way Test Strips

    Freshwater 5-Way Test Strips
    $29.00
    $29.00
  • Insta Test 4Plus Spa Chemicals

    Insta Test 4plus Spa

    Quickly and accurately monitor the water quality of your spa or pool with 4 Plus Insta Test Strips. These convenient strips provide instant results for key water parameters, including pH, chlorine, alkalinity, and calcium hardness. Designed for ease of use, they help you maintain...
    $35.00
    $35.00
  • Aquachek Test Strips Salt Chemicals

    Aquachek Test Strips Salt

    Aquachek Test - Salt (Sodium Chloride) - 10 in Bottle
    $34.00
    $34.00
  • Aquachek Spa Test Strips 6-In-1 General

    Aquachek Spa Test Strips 6-IN-1

    Total Chlorine  Free Chlorine  Total Bromine  Total Alkalinity  Total Hardness  PH 50 Test Strips 
    $32.00
    $32.00
  • 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.
    $24.00
    $24.00
  • Freshwater Cover Shield General

    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
  • 303aerospaceprotectant

    303 Aerospace Protectant 473ml

    303 Aerospace Protectant – Ultimate UV Protection for Spa Cover Keep your spa cover in top condition with 303 Aerospace Protectant. This high-performance UV protectant spray is specially formulated to protect vinyl, rubber, plastic, and other materials from the harmful effects of the sun....
    $45.00
    $45.00
  • 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
  • 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...
    $36.00
    $36.00
  • 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
  • swirlawaypipecleaner

    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
  • Bio Guard Foam Go 500G General

    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
  • Bio Guard Defence General

    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
  • Crystal Clear General

    BioGuard Crystal Clear

    BioGuard Crystal Clear – Powerful Spa Water Clarifier BioGuard Crystal Clear is the ideal solution for achieving sparkling clean and clear spa water. Over time, spa water can become cloudy due to fine particles and impurities. This highly effective spa water clarifier works by...
    $35.00
    $35.00
  • Bio Guard Squeaky Clean 500Ml General

    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
  • velvet

    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
  • Bio Guard Performance Up 500G General

    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
  • Bio Guard Comfort Up 500G General

    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
  • Bio Guard Aquality 750G General

    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

    BioGuard Shield 450g

    BioGuard SPA Shield raises calcium hardness to help prevent corrosion of equipment and etching of surfaces. Protects spa surface and equipment. Helps prevent corrosion of equipment. Helps prevent etching. Increases and assists in maintaining calcium hardness levels.
    $20.00
    $20.00
  • Bio Guard Perfect Balance 1L General

    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
  • fw-ph-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.
    $26.00
    $26.00
  • Freshwater Salt Cartridge (Single)

    FreshWater Salt Cartridge (Single)

    Single cartridge for HotSpring Freshwater salt systems  Pack of 3 available too 
    $140.00
    $140.00
  • freshwater-spa-salt-4-5kg

    Freshwater Spa Salt

    Freshwater Spa Salt Hot Spring Freshwater Spa Salt Granules approx. 4.5kg (10lb) For use with the Freshwater Salt Sanitising System and ACE sanitising system High quality fine salt granules that dissolve into your spa water fast! Handy carry bag and instructions included on the...
    $55.00
    $55.00
  • Ace Cell Cleaner Chemicals

    Freshwater ACE Cell Cleaner 355ml

    It is recommended that you clean and inspect your ACE Salt Water System cell every 3 months.The FreshWater ACE Cell Cleaner removes calcium scale and improves cell efficiency and maximises cell life.Conveniently clean your ACE cell by placing it directly in this single-use bottle...
    $26.00
    $26.00
  • Freshwater Stain and Scale 473ml

    Freshwater Stain and Scale 473ml

    Stain and Scale Defense  Prevents calcium buildup and spa surfaces Eliminates iron and other metallic staining in spas
    $28.00
    $28.00
  • Pipe Cleaner 500Ml Chemicals

    CW Pipe Cleaner 500ml

    Pipe cleaner for spas, spa baths and hot tubs 
    $26.00
    $26.00
  • fw-ph-down

    Freshwater pH/Alkalinity Down

    The Freshwater pH/Alkalinity Down decreases the pH and Alkalinity in your spa preventing cloudy water and scale formation.
    $28.00
    $28.00
  • CW No Foam 1L

    CW No Foam 1L

    No Foam eliminates and prevents foam build up in spas, hot tubs, whirlpools, ornamental pools and fountains or wherever foaming may be a problem. Directions for use; - ALWAYS SHAKE FIRST, ensure spa is running when applying. Prevention of Foam add 20mls per fortnight...
    $36.00
    $36.00
  • Spa Start Up Kit - Bromine Chemicals

    CW Spa Start Up Kit - Bromine

    Crystal Water Spa start up kit is designed for easy convenience with all the products in one box for your initial spa treatment. The kit contains: 800g Bromine 1kg pH decrease 1kg pH buffer 750g Calcium Hardener Aquacheck 3 in 1 pool and spa...
    $120.00
    $120.00
  • Spa Start Up Kit - Chlorine Chemicals

    CW Spa Start Up Kit - Chlorine

    Kickstart your spa experience with the Spa Start-Up Kit (Chlorine), a comprehensive solution designed to ensure your spa is perfectly balanced and ready for use. This all-in-one kit includes essential products to get your spa water clean, clear, and inviting from the very beginning....
    $110.00
    $110.00
  • deluxecleaningkit

    Deluxe Cleaning Kit with Microfibre Cloth

    Deluxe Cleaning Kit with Microfibre Cloth – Your Complete Spa Care Solution Make spa maintenance easy and effective with the Deluxe Cleaning Kit with Microfibre Cloth. This all-in-one kit has everything you need to keep your spa clean and inviting. It combines three powerful...
    $108.90
    $108.90
  • 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
  • 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
  • Freshwater Vanishing Act (Calcium Remover)(8/box min)

    Freshwater Vanishing Act (Calcium Remover)(8/box min)

    Create a softer, more enjoyable soaking experience.  Help prolong the life of your hot tub and extend the amount of time between water changes.  Use less water! Soften hard water without chemical additives by using the Vanishing Act calcium remover. Softer water leaves your skin feel silkier as it helps protect your spa components from the damaging effects of hard water....
    $50.00
    $50.00
  • Waters_Choice_Pure_Enzymes

    Waters Choice Pure Enzymes

    Waters Choice Pure Enzymes for Spas – Natural, Monthly Spa Treatment Achieve crystal-clear, healthy spa water with Waters Choice Pure Enzymes for Spas. This 12 oz monthly treatment simplifies spa maintenance while reducing your reliance on harsh chemicals. By harnessing the power of natural...
    $42.50
    $35.00
    $42.50
  • Fix-A-Leak 1 Litre

    Fix-A-Leak 1 Litre

    Fix-A-Leak 1 Litre - Leak SealerFix-A-Leak is a blended concentrated material designed to seal leaks in virtually any material. It can be applied for leaks in the shell and works equally well in plumbing. Will seal holes up to 3mm in diameter. Forms a...
    $189.00
    $189.00
  • Spacare Leak Sealer 500Ml General

    Spacare Leak Sealer 500ml

    Fix small leaks in your spa, swim spa, or hot tub with SpaCare Leak Sealer. This powerful formula is designed to seal minor leaks in plumbing and equipment, saving you time and costly repairs. Easy to use, it quickly seals and repairs small cracks...
    $35.00
    $35.00

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