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Hy-Clor Super Shock Granular Pool Chlorine 4kg Calcium Hypochlorite

★★★★★
101 reviews · 684+ sold
$76.65 $114.98 -33% OFF
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Last purchased 6 minutes ago by someone in Canberra
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Hy-Clor super shock granular pool chlorine is a highly concentrated 4kg calcium hypochlorite (70%) treatment that rapidly lifts chlorine levels to clear algae and restore a clean swimming pool. Granular chlorine like this is exactly what you reach for when you need to shock a pool back to health.

  • Pack size: 4kg
  • Active ingredient: calcium hypochlorite 70%
  • Type: granular pool chlorine
  • Action: fast-acting super chlorinator

This concentrated formula works quickly to raise free chlorine and tackle green, black and mustard algae. Use it as a regular super-chlorination treatment or to recover a neglected or algae-affected pool, then test and balance your water before swimming.

More about this product

Hy-Clor 4kg Super Shock Granular Pool Chlorine is a highly concentrated chlorine product for effective pool sanitation and algae control. This granular chlorine serves as a super chlorinator, rapidly elevating chlorine levels in swimming pools.

  • 4kg granular pool chlorine
  • 70% calcium hypochlorite
  • Fast-acting super chlorinator
  • Helps clear green, black and mustard algae

Questions & Answers

Can I use granular chlorine to shock a pool?

Yes. This product is a super shock granular chlorine made for exactly that, rapidly raising chlorine levels to clear algae and sanitise the water.

What is the active ingredient?

It is calcium hypochlorite at 70% concentration.

What size is this pack?

It is a 4kg pack of granular pool chlorine.

What does super shock treat?

The concentrated chlorine helps clear green, black and mustard algae and restore clarity to the water.

When should I swim after shocking?

Always test your water and wait until chlorine and pH return to the recommended range before swimming.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 140 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
P
Priya S. 📍 Mandurah WA
★★★★★
5 months ago
✓ Verified Purchase

Satisfied customer

Had been looking at the Hy-Clor Super for a couple of months. Hy build quality is obvious as soon as you open the box — feels solid and well finished. Easy to set up and works exactly as described. Delivery to Perth in only 3 days which is impressive. Will be buying more from SuperSaver AU for sure.

E
Ethan W. 📍 Hervey Bay QLD
★★★★★
5 months ago
✓ Verified Purchase

Exceptional — 5 stars

Really happy with this. Price was the best I found online and delivery was faster than expected. Product is well made and does exactly what it should. Zero complaints — will buy from SuperSaver AU again.

S
Sarah M. 📍 Sydney NSW
★★★★★
Yesterday
✓ Verified Purchase

Absolutely love it!

Had the Hy-Clor Super on my wishlist for a few weeks and finally pulled the trigger. Arrived in 2 days which was a nice surprise. Build quality is solid and exactly what the photos showed. My partner uses it every day now and has already asked me to grab another one as a gift.

J
James W. 📍 Melbourne VIC
★★★★★
3 days ago
✓ Verified Purchase

Best buy of the year

Ordered Thursday and had it by Saturday. Packaging was really good — nothing moved around. Works exactly as expected and the price was well below what I saw in stores.

E
Emma T. 📍 Brisbane QLD
★★★★★
5 days ago
✓ Verified Purchase

Fast delivery — impressed

Love my Hy-Clor Super. Does the job perfectly and the price was unbeatable.

L
Liam O. 📍 Perth WA
★★★★★
1 week ago
✓ Verified Purchase

Exactly as described

Always buy Hy when I can — consistent quality and you know what you are getting. This one is no different. Fast dispatch and arrived in perfect condition.

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