Iluka Hardup - Calcium Hardness Increaser

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Iluka Hardup - Calcium Hardness Increaser

Name: Iluka Hardup - Calcium Hardness Increaser
Brand: PS
SKU: 53HU500G
Price: 11.00 AUD
Availability: InStock

Price:

$11.00

Quantity:

Tax Included. Shipping over $149 FREE or calculated at checkout. T&Cs

About Us: We keep physical stock in Vic, NSW, Qld, WA unline most online stores. We offer sustainable, value-based pricing that reflects our stock and support. We don’t price match but stay competitive for the long term.

Iluka Hardup increases the Calcium Hardness level in spa & hot tub water. Water low in calcium can corrode equipment, etch concret and grouted surfaces, and provide and environment favourable to algal growth.

This range provides everytrhing you need to enjoy a healthy bathing experience, maintain crystal clear water, and minimise chemical usage.

Iluka Start-up Kits - Bliss, Seachange, Purify, Brilliance, Klenz, Elevate, Descend, Hardup, 3 in 1 test strips, water sample bottle, 60ml Measuring Cup. We also recommend you add a 1kg Iluka Eliminate
Iluka Bliss - Sea minerals
Iluka Seachange - Oceanic ingredients
Iluka Brilliance - Water Polisher
Iluka Purify - Sanitiser
Iluka Eliminate - Chlorine-Free Oxidiser
Iluka Elevate - Total Alkalinity & pH Increaser
Iluka Descend - pH Reducer
Iluka Hardup - Calcium Hardness Increaser
Iluka Klenz - Cartridge & Surface Cleaner
Iluka Purge - Pipe & Biofilm Remover
Iluka Sudsaway - Foam Remover

Note: Dry chemicals are sold by weight, not volume. Due to differing densities of various chemicals, some containers may not appear 'full' when they are actually the correct weight.

General Info - FAQs

Shipping & Pick-Up Info

Enjoy Free Road Shipping on most orders over $149 (bulky or dangerous goods excluded — your cart will show this).
Need it fast? Select Express Post for delivery in 1–5 business days*, or contact us to confirm stock for urgent orders.
Pick-ups are available from our Carrum Downs, VIC store. Please order online, and we’ll notify you when it’s ready. Our NSW, QLD, and WA warehouses ship orders only.
View our Shipping Info & Policy here,
Click here or check your order confirmation email for tracking updates.
Shipping T&Cs

I'm not sure what I need. Can you help?

Please try our Search first— try entering any part numbers, models, or measurements. There’s a good chance you’ll find it! Still can't find it?

We’re here to help. For the fastest, most accurate response, please include:

Clear photos of the part itself and where it sits in the spa (control box, touchpad, pump label, filters, etc.).
Measurements (e.g. thread size, pipe OD/ID, heater kW rating, pump label details, etc).
Brands: Mention any brands you know or can see.
Error codes or symptoms you’ve noticed, plus anything you’ve already tried.
Technical Help - For technical assistance, please email us with as much detail as possible. Keep in mind we are limited in what advice we can provide on electrical and gas components, as all work must be carried out by a qualified technician.

About Heater & Spa Parts (HASP)

Heater & Spa Parts has Australia’s largest range of spa spare parts, supplies, and pool heaters from top brands. We're a real store with real stock—not just another drop-shipper.

We're 100% Australian-owned and operated, with warehouses in VIC, NSW, QLD & WA, and we ship faster than anyone. We have a physical retail store at 10 Industry Blvd, Carrum Downs, Vic.

As authorised dealers and service agents for major brands, and former employees of leading manufacturers, we know our stuff.

We're proud SPASA and Master Plumbers members, working closely with top manufacturers and distributors.

With over 50,000 parts across 5,000+ product lines, we stock everything from filters, pumps, jets, chemicals, heaters, touchpads, control panels, and more—plus manuals and expert info to help you out.

Parts & Brands

We stock and supply parts from all the major brands: Aeware, AquaFlo, Astralpool, Balboa, CG Air, CMP, Darlly, Davey, Del Ozone, Edgetec, Fluidra, Gecko, Hurlcon, Jandy, LX, Madimack, Magnum, Pentair, Raypak, Rheem, SpaNet, Spa-Quip, SpaPro, Waterco, Waterway, Zodiac—and many more.

Our parts are compatible with popular spa brands including Alpine, Arctic, Artesian, Bullfrog, Caldera, Cyclone, Decina, Dimension One, Endless®, Fisher, HotSpring, Just Spas, LA Spas, Maax, Monarch, Oasis, Sapphire, Signature, Sundance, Vortex® and dozens more.

Please note: Images are for illustration only—actual products may vary. Some OEM parts may arrive without packaging or manuals.

Where available, manuals are on the product page or provided on request.

All parts must be installed by qualified professionals. Electrical and gas work must be carried out by licensed technicians.

Warranty & Return Info

Warranty Info: As an authorised service agent, our process is quick and straightforward. See our Warranty page for details.

Returns Policy: 30-day returns on many products, excluding electrical and some other items. See our returns policy here.

Iluka Hardup - Calcium Hardness Increaser

Description

Iluka Hardup - Calcium Hardness Increaser

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General Info - FAQs