Free Shipping over $149 Australia-wide | Road Shipping capped at $19.95

Most Physical Stock - Fastest Shipping from Vic, NSW, Qld, WA

Express Post Available - Australia-wide.

1 2

Up to 49% off

Zodiac MagnaSpa Spa Minerals & Water Softener - 3kg Bag

FREE SHIPPING OVER $149 (T&Cs)

From $58.00 $114.00

Tax included Shipping calculated at checkout.

Choose Options

1x 3kg Bag Magnaspa 4x 3kg Bags Magnaspa

Don't Guess - Ask Us!

Not sure if it’s the right part? Send us a message and a photo of what you’re replacing, or what you need, and we’ll help make sure you get the right part the first time.

Delivery and Shipping Info*

Free Shipping over $99 for most products. Choose Express Post for fastest shipping!

Free, Flat Rate & Express Post Shipping Information.

Zodiac MagnaSpa Spa Minerals & Water Softener - 3kg Bag

Zodiac MagnaSpa Spa Minerals. Developed specifically for spa applications, MagnaSpa features increased magnesium content to provide the bather with increased comfort. Gentle on the skin, the water additive promises to relax and rejuvenate spa users.

Physically Stocked, unlike most "drop-shipping" websites.
Shipped from VIC, NSW, WA, QLD

It is compatible with all current sanitiser and oxidiser models.

MagnaSpa is available in 3Kg bags, one bag is suitable for 1000L

MagnaSpa benefits:

Silkier more comfortable water
Soothing to sensitive skin types
Relaxes and rejuvenates
Brochure

Application: • 1 x 3kg per 1 000L • 50/50 blend of Magnesium and Potassium Pro Tip: • Initial application may cause a slight yellow tinge to the water. This is a slight reaction to some sanitisers and will disappear in about 24 hours. • Total hardness will increase from the Magnesium

Manufacturer Catalogues, Diagrams & Part Numbers

Need exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues: Astralpool Catalogue 2026 | Zodiac Catalogue 2026

Payment & Security

We accept: Visa, Mastercard, Amex, Apple Pay, Google Pay, ShopPay, Paypal, Zip, Afterpay

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

WC000200 (1 bag only)

Important Information

Delivery Pricing & Options

*Free Road Shipping on orders over $149.00 Australia-wide
Capped Road Freight Shipping at $19.95
Express Post available on many products. Contact us before ordering if urgent.
Shipping to Australia & New Zealand Only
Shipping Policy & Info
About Us

Heater & Spa Parts is built on decades of real pool and spa industry experience, from manufacturer R&D and consulting to in-field spa repairs, pool heater servicing, trade support and diagnostics.
We understand how the equipment works, why it fails, and why it should be replaced.
More Parts than Anyone

We are a real Australian store with real stock, not a drop shipper.
With 100,000+ parts across 10,000+ product lines, we stock spa parts, pool heater parts, filters, pumps, jets, chemicals, touchpads, control panels, manuals and more, backed by fast dispatch and practical advice.
Pick-Ups

Pickup for many items is available from our Carrum Downs, VIC store at 10 Industry Blvd, Carrum Downs.
If pick-up is urgent, contact us before ordering.
Our NSW, QLD and WA warehouses currently ship orders only, with no retail counter available yet.

Brand Information

We are an authorised dealer, retailer, and/or service & warranty agent for many leading brands, including: Fluidra (AstralPool, Zodiac, Hurlcon), Aeware, Air Supply of the Future, Aqua-Flo, Balboa, Celsior, CG Air, CMP, Custom Moulded Products (CMP), Darlly, Davey, Del Ozone, Dontek, Edgetec, Emaux, Filtrite, Gecko, Goulds, Harwil, Henden, Herga, Honeywell, HydroAir, HydroQuip, ITT, Jandy, Joyonway, Laing, Len Gordon, Lo-Chlor, LX, LX Whirlpool, Magic Plastics, Magnum, Monarch, Onga, Pentair, PoolSystems, Presair, Raypak, Reemay, Rheem, Rising Dragon, S&P, Sensaheat, Spa-Craft, Spa-King, SpaNet, Spa-Quip, SpaTex, SpaZazz, Tecmark, Therm Products, Thermcore, Waterco, Waterway, Weld-On, Whirlpool, Xylem, and others.

We also sell parts for many spa and swim spa brands, including parts to suit Alpine Spas, Artesian Spas, AquaPulse Spas, Balboa spas, Bullfrog Spas, Caldera Spas, Canadian Spa Company, Cedar Spas, Chinese import spas, Coast Spas, Costco spas, Cyclone Spas, Davey spas, Decina, Designer Spas, Dimension One Spas, eBay spas, Endless® Spas, Fastlane Pools, Fisher Spas, Gecko spas, Halo Spas, H2O Spas, H20 Spas, Heritage Spas, HotSpring Spas, HydroQuip spas, Impact Spas, Jacuzzi, Just Spas, Just Swim Spas, LA Spas, Lanark Spas, Leisurite Spas, Maax Spas, Monarch Spas, MySpa, O2 Spas, Oasis, Sapphire Spas, Sapphire Swim Spas, SCS Spas, Signature Spas, Silver Spas, Spa Industries, Spa-Quip spas, SpaNet spas, Spas Direct, Sundance Spas, Sunrans, SwimEx, Trueform Spas, Tuff Spas, Urban Pool, Vortex®, Vortex® Swim Spas, and many others.

Handy PVC Plumbing Size Info
Plumbing sizes can be confusing. Pressure PVC pipe use nominal sizes - the size is simple a name, not the measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
- 50mm / 2" = ~60-61mm OD
- 40mm / 1.5" = ~48mm OD
- 25mm / 1" = ~33-34mm OD

Plug Types & Styles
Common plug types found on spa equipment are AMP, Mini JJ, C38 (Aus 3-pin), Gecko in.link, etc. For more information please click here.
- AMP plugs are the most common type used for over 20 years.
- Many Mini J&J plugs are no longer available and must be modified.
- C38 is the common Australian 3-pin plug found in normal household outlets.
- Gecko (Aeware) in.link style plugs are no longer available and must be modified.

General Information & Disclaimers

Many products we supply are OEM-supplied and may not include retail packaging, printed instructions, or accessories. Refer to the product listing for details, or contact us if unsure.

Product images are for illustration only. Actual items may vary due to manufacturer changes, updates, and other variations. Images may show a full assembly, a partial assembly, or a specific component only. They are provided for identification purposes and do not by themselves define what is included. Please read the title and description carefully.

All products must be installed and used by qualified and experienced persons in accordance with applicable Australian standards and manufacturer requirements. We are a parts supplier, similar to an electrical, plumbing, or automotive parts supplier. We sell parts, but cannot always provide exact installation, troubleshooting, or system design advice. Buyers are expected to know what they are doing or use a qualified professional.

Contact us before ordering if your order is urgent, to confirm availability before purchasing.

® Trademark Information

All trademarks, brand names, and logos displayed on this website are the property of their respective owners. Heater & Spa Parts is an independent Australian supplier of replacement parts and accessories. Use of trademarked names, logos, and brands is for identification and compatibility purposes only, unless otherwise stated.