Pool Chlorine Granules (Cal Hypo)

Name: Backyard Pools Chemicals Pool Chlorine Granules (Cal Hypo) - Pool Chlorine Granules (Cal Hypo)
Brand: Backyard Pools Chemicals
SKU: 45375300993187
Price: 57.5 NZD
Availability: InStock
Rating: 5 (1 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

NZ$57.50

Quantity

Color

Black

Quantity

Pool chlorine granules (calcium hypochlorite) are an economical sanitiser for swimming pools. For the control of algae and bacteria in swimming pools. When using this product it is key to mix on a bucket beforehand and allow to full dissolve before broadcasting into the pool.
There will be a small residual of calcium in the bottom of the

5.0

1 rating

they seem to work fine

Anonymous · February 16, 2026

Backyard Pools Chemicals

4.2 (5)

Product description loading

This is the product description text that will appear here.

Backyard Pools Chemicals

Safe T Chlor (Dichlor Granules)

NZ$14.50

4% off

Backyard Pools Chemicals

BioFresh Tablets 4 Pack

NZ$38.00NZ$39.60

My Hot Tub Shop

Stabilised Chlorine Granules 1kg

(1)

£18.99

Backyard Pools Chemicals

Liquid Chlorine

NZ$33.00

The Pool Shop

PoolWise Sunblock

$23.00

Backyard Pools Chemicals

Spa Chlorine - Spawise

NZ$15.90

Test All Water

Stabilised Chlorine Granules

$14.00

Backyard Pools Chemicals

Nil Phos - Phosphate Remover

NZ$32.60

The Pool Shop

PoolWise pH Up

$12.00

Backyard Pools Chemicals

Copper Free Algaecide

NZ$29.90

Backyard Pools Chemicals

Cell Clean 5L

NZ$106.20

Southern Spas & Pools

Swim Clear 1kg - Chlorine

NZ$28.00

The Pool Shop

Oxygen Shock

$26.00

Backyard Pools Chemicals

Salt Cell Cleaner 1l

NZ$30.60

Clearway Pools and Spas

Chlorine Granules

$55.00

Backyard Pools Chemicals

Pool Chlorine Granules (Auckland Only)

NZ$55.20

Backyard Pools Chemicals

Shock N Swim 10kg (Auckland Only)

NZ$99.10

Backyard Pools Chemicals

Pool & Spa Clarifier 1L

NZ$27.60

The Pool Shop

PoolWise Pool Chlor Pills

$35.00

Backyard Pools Chemicals

All Purpose Algaecide 1l

NZ$47.50

Backyard Pools Chemicals

Dual Strength Algaecide

NZ$51.50

Aqua-Guard Granular Chlorine container, 6 kg, for effective pool sanitation and algae control.

10% off

Aqua-Guard Pool Products

Aqua-Guard Granular Chlorine

CA$89.99CA$99.99

Backyard Pools Chemicals

Alkalinity Up - pH Buffer

NZ$16.50

The Pool Shop

PacificSalt Premium Pool Salt

$12.00

Backyard Pools Chemicals

Hydrochloric Acid 24%

(2)

NZ$33.10

For the grill master

Kitchen staples that elevate dad’s culinary skills

LA Pool & Spas

Elite Chlor Granules

CA$27.02

The Pool Shop

SpaWise Water Hardener

$11.00

6% off

Backyard Pools Chemicals

20g Tablet Floater

NZ$33.00NZ$35.00

Ducky's Pools, Hot Tubs & Living

Granular Chlorine

$7.99

Living room glow up

Chic lighting, side tables, and linen layers.

14% off

Silver Spas

Spa wise (Chlorine) – Sanitizer (1kg)

(1)

NZ$30.00NZ$35.00

Backyard Pools Chemicals

Sparkling Blue Algaecide 1l

NZ$54.50

The Pool Shop

PoolWise Safe-T-Chlor

$12.00

Backyard Pools Chemicals

Pro Shock + Clarifier

(1)

NZ$16.50

Backyard Pools Chemicals

Hydrochloric Acid 24% 20l (AUCKLAND ONLY)

NZ$75.00

Southern Spas & Pools

Swim Clear 4kg - Chlorine

NZ$85.00

Backyard Pools Chemicals

pH Up - Soda Ash

NZ$21.00

The Pool Shop

SpaWise pH Down

$11.00

Backyard Pools Chemicals

Backyard Pools - Spring Pack

NZ$150.50

32% off

Backyard Pools Chemicals

Ultimate Spa Care Pack

NZ$139.40NZ$205.00

Pool Chemicals, Crystal Water Chlorine Granules 40KG. Chlorine Granules maintain the health of your pool and keep it clean by destroying and preventing algae/bacteria growth in pool water.

PoolChemicalsDirect

Chlorine Granules 40 kg Crystal Water

NZ$385.00

The Pool Shop

Lochlor Starver M

$58.00

Backyard Pools Chemicals

AquaChek Salt System Test Kit

NZ$52.80

Exclusive offer available

Mastercraft Pool and Spa

POOLIFE ACTIVE CLEANING GRANULES CAL HYPO 50LB

$254.99

Backyard Pools Chemicals

Ezi Chlor Granular Trichlor

NZ$26.50

30% off

upoolworld

50 lbs Pool shock 68% Chlorine Granules Calcium Hypochlorite

(3)

$159.99$229.99

Backyard Pools Chemicals

Shock N Swim

NZ$109.00

The Pool Shop

PoolWise Anti-Chlor

$18.00

Backyard Pools Chemicals

Sparkling Blue Algaecide

NZ$197.70

Bar cart basics

Carts, glassware, and bottle storage.

40% off

US Water Systems

Granular Chlorine - 8oz Jar

(5)

$19.95$33.25

Backyard Pools Chemicals

Stabiliser (Sunblock)

NZ$26.25

The Pool Shop

Automatic Chlorine/Bromine Feeder

$230.00

Backyard Pools Chemicals

Clarifying Skimmer Tablet

NZ$11.00

Backyard Pools Chemicals

Natural Filter Cleaner & Degreaser

NZ$46.50

Clearway Pools and Spas

hth shock granules

$55.00

The Pool Shop

SpaWise pH Up

$11.00

Bluewater - Water and Pool Store

Clarifying Pool Tablets (Maxi Clear Tabs)

$8.00

Denny Shop UK

1kg Chlorine Granules for Pools & Spas

£7.91

Backyard Pools Chemicals

Dual-Strength Algaecide 1l

NZ$51.50

Atlas Spas and Swim Spas

Pool Breeze Chlorinating Granules - 25 Lbs

$169.99

Backyard Pools Chemicals

pH Down

(1)

NZ$20.40

The Pool Shop

SpaWise Spa Chlorine

$19.00

Backyard Pools Chemicals

Trichlor Tablets 200grm -Slow Dissolving (Auckland only)

NZ$23.90

Backyard Pools Chemicals

Pool Salt Premium - 20kg

NZ$21.00

Backyard Pools Chemicals

Liquid Chlorine 20l (Auckland Only Delivery)

NZ$71.00

The Pool Shop

PoolWise Water Hardener

$12.00

Backyard Pools Chemicals

Aquachek Red Test Strips

NZ$26.50

Backyard Pools Chemicals

Spa Bromine - Chlorine Free

NZ$38.60

Backyard Pools Chemicals

Cartridge Cleaner

NZ$22.00

hottubheroes

Granular Chlorine

$27.99

The Pool Shop

SpaWise SPA-KLEEN

$15.00

Bluewater - Water and Pool Store

Lo-Chlor Filter Aid & Metal Remover 300g

$46.00

27% off

upoolworld

50 lbs Pool Shock 68% Calcium Hypochlorite Chlorine Granules

(1)

$159.99$219.99

Backyard Pools Chemicals

Water Hardener (Calcium Chloride)

NZ$9.90

Direct Chems

Stabilised Chlorine Granules

$35.24

Backyard Pools Chemicals

Chlorine Free - Oxyshock

NZ$33.50

The Pool Shop

Liquid Chlorine

$34.00

Backyard Pools Chemicals

Anti Chlor (Sodium Thiosulphate)

NZ$26.90

PTL Direct

Chlorine Granular and Shock - Later Calcium Hypochlorite 18kg (Product #23068P75)

CA$99.79

Backyard Pools Chemicals

Trichlor Tablets 200grm -Slow Dissolving

NZ$35.90

The Pool Shop

PoolWise Alkalinity Up

$11.00

Backyard Pools Chemicals

Multi Tabs 200grm -Slow Dissolving

NZ$35.90

Backyard Pools Chemicals

Stain Eliminator - Stain Treatment

NZ$51.00

Bluewater - Water and Pool Store

Chlorine Pills (Calcium Hypochlorite 65%)

$56.00

Backyard Pools Chemicals

Liquid Floc

NZ$38.01

The Pool Shop

SpaWise Alkalinity Up

$11.00

Zephyr Pool Supplies

Granular Pool Chlorine 700

A$30.00

27% off

upoolworld

50 lbs Pool Shock 68% Calcium Hypochlorite Chlorine Granules

$159.99$219.99

Pool Chlorine Granules (Cal Hypo)

Description

Reviews5.0(1)

Delivery & Returns

Backyard Pools Chemicals

You might also like

Safe T Chlor (Dichlor Granules)

BioFresh Tablets 4 Pack

Stabilised Chlorine Granules 1kg

Liquid Chlorine

PoolWise Sunblock

Spa Chlorine - Spawise

Stabilised Chlorine Granules

Nil Phos - Phosphate Remover

PoolWise pH Up

Copper Free Algaecide

Cell Clean 5L

Swim Clear 1kg - Chlorine

Oxygen Shock

Salt Cell Cleaner 1l

Chlorine Granules

Pool Chlorine Granules (Auckland Only)

Shock N Swim 10kg (Auckland Only)

Pool & Spa Clarifier 1L

PoolWise Pool Chlor Pills

All Purpose Algaecide 1l

Dual Strength Algaecide

Aqua-Guard Granular Chlorine

Alkalinity Up - pH Buffer

PacificSalt Premium Pool Salt

Hydrochloric Acid 24%

Elite Chlor Granules

SpaWise Water Hardener

20g Tablet Floater

Granular Chlorine

Spa wise (Chlorine) – Sanitizer (1kg)

Sparkling Blue Algaecide 1l

PoolWise Safe-T-Chlor

Pro Shock + Clarifier

Hydrochloric Acid 24% 20l (AUCKLAND ONLY)

Swim Clear 4kg - Chlorine

pH Up - Soda Ash

SpaWise pH Down

Backyard Pools - Spring Pack

Ultimate Spa Care Pack

Chlorine Granules 40 kg Crystal Water

Lochlor Starver M

AquaChek Salt System Test Kit

POOLIFE ACTIVE CLEANING GRANULES CAL HYPO 50LB

Ezi Chlor Granular Trichlor

50 lbs Pool shock 68% Chlorine Granules Calcium Hypochlorite

Shock N Swim

PoolWise Anti-Chlor

Sparkling Blue Algaecide

Granular Chlorine - 8oz Jar

Stabiliser (Sunblock)

Automatic Chlorine/Bromine Feeder

Clarifying Skimmer Tablet

Natural Filter Cleaner & Degreaser

hth shock granules

SpaWise pH Up

Clarifying Pool Tablets (Maxi Clear Tabs)

1kg Chlorine Granules for Pools & Spas

Dual-Strength Algaecide 1l

Pool Breeze Chlorinating Granules - 25 Lbs

pH Down

SpaWise Spa Chlorine

Trichlor Tablets 200grm -Slow Dissolving (Auckland only)

Pool Salt Premium - 20kg

Liquid Chlorine 20l (Auckland Only Delivery)

PoolWise Water Hardener

Aquachek Red Test Strips

Spa Bromine - Chlorine Free

Cartridge Cleaner

Granular Chlorine

SpaWise SPA-KLEEN

Lo-Chlor Filter Aid & Metal Remover 300g

50 lbs Pool Shock 68% Calcium Hypochlorite Chlorine Granules

Water Hardener (Calcium Chloride)

Stabilised Chlorine Granules