Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

St. Cyr Pool & Spa

Products

Products

St. Cyr Pool & Spa

Refresh+ 73% Cal-Hypo (1lb Bag)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$9.99

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shopping designed around you.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

You might also like

St. Cyr Pool & Spa

Lifeline #3 Stabilizer 4LBS

St. Cyr Pool & Spa

AquaChek Chlorine + Shock 4 In 1 Test Strips AC511249

Pools of Fun

Re-Fresh 68% Cal-Hypo 1# Pouch

St. Cyr Pool & Spa

Lifeline #5 Calcium Hardness Increase 25lbs

St. Cyr Pool & Spa

Bullfrog Filter, Cage Core Assembly W/ Cap 10-00417

(1)

St. Cyr Pool & Spa

Feeder Cap W/Oring IG Cyclers New Water Pool Frog Perfom-Max

St. Cyr Pool & Spa

St. Cyr Alkalinity Increase 25lbs

Leisure Time Inc.

Leisure Time Inc.

4.8

(1.1K)

Watkins Wellness Spa Frog Cartridge Holder - Leisure Time Inc.

St. Cyr Pool & Spa

Lifeline Non Metallic Algaecide-Gunite 32oz

St. Cyr Pool & Spa

APC 1.5" MPT Raised Winter Plug w/O-Ring

St. Cyr Pool & Spa

303 Multi Surface Cleaner 32oz

21% off

Standard Chemicals

Pool shock 56 - 12lb

St. Cyr Pool & Spa

Spa Pure Brominating Tabs 4lb C002510-CS77C1

St. Cyr Pool & Spa

Bullfrog A-Series Pillow (2020-2022) 60-01381

St. Cyr Pool & Spa

Jandy AquaPure PureLink Cell Kit 40K Gallons PLC1400

St. Cyr Pool & Spa

Lifeline #4 Alkalinity Increaser 5LBS

St. Cyr Pool & Spa

St. Cyr Liquid Chlorine Shock 1 Gallon (Case of 4)

St. Cyr Pool & Spa

Omega Swimming Pool Antifreeze 1gal

Budget Pools

St. Cyr Pool & Spa

CMI 3"x100' Equipotential Bonding Grid Kit EB3100

27% off

upoolworld

50 lbs Pool Shock 68% Calcium Hypochlorite Chlorine Granules

St. Cyr Pool & Spa

Safe-T-Zone Winterizing Kit 30k Gal

St. Cyr Pool & Spa

Bullfrog Spas Replacement Pillow for STIL Spa, Cool Gray 2015+

St. Cyr Pool & Spa

AquaChek Yellow Chlorine 4 In 1 Test Strips AC511242

St. Cyr Pool & Spa

D.E. Swimming Pool Filter Powder 25lbs

St. Cyr Pool & Spa

Scum Sponge Beach Ball 6855

27% off

Pool Country

50 lbs Pool Shock, 68% Cal-Hypo Granular

St. Cyr Pool & Spa

303 UV Protectant 16oz

St. Cyr Pool & Spa

Bullfrog Air Comfort Replacement Headrest (2002-2012) 60-1160

St. Cyr Pool & Spa

Swimline Flex Dive Sticks 9130

Cleartub

Cleartub

4.9

(124)

Frog @ease cartridges are used to keep your spa water clean and clear

Super Shockwave, 73% Granular Cal Hypo Pool Shock - EZ Pools

10% off

EZ Pools

Super Shockwave 73% Cal Hypo Pool Shock

(49)

St. Cyr Pool & Spa

Spa Pure Chlorinating Granules 1lb

St. Cyr Pool & Spa

Bullfrog Frog @Ease Cartridge Holder 10-01006

St. Cyr Pool & Spa

Lifeline #5 Calcium Hardness Increaser 4LBS

27% off

upoolworld

50 lbs Pool Shock 68% Calcium Hypochlorite Chlorine Granules

(1)

St. Cyr Pool & Spa

St. Cyr Chlorine Stabilizer 4lbs

St. Cyr Pool & Spa

Bullfrog A Series Filter Foam Headrest (2016-2019)

St. Cyr Pool & Spa

AquaChek 4-1 Bromine Test Strips 521252A

St. Cyr Pool & Spa

Aqua Group Aqua Products Plug for 1.5" Lines

St. Cyr Pool & Spa

Leisure Time Enzyme Treatment 1qt

Hot Tub Things

Hot Tub Things

Hot Tub Things

4.2

(184)

FROG® @ease® SmartChlor® Cartridge 3-Pack for Bullfrog® Spas Classic, 10-01053 – front view

FROG® @ease® SmartChlor® Cartridge 3-Pack for Bullfrog® Spas Classic, 10-01053 – front view

FROG® @ease® SmartChlor® Sanitizing System for Bullfrog® Spas Classic, 10-01051 – front view

Bullfrog® A/R/X Series Wellspring 282 Coreless Filter 2-Pack, 10-00416 – front view

St. Cyr Pool & Spa

St. Cyr Chlorine Free Shock 5lb

(1)

St. Cyr Pool & Spa

Bullfrog Spa A-Series Headrest (2013-2015) 60-1245

St. Cyr Pool & Spa

#3 Regular Winter Plug

St. Cyr Pool & Spa

Lifeline #2 PH Minus 3lbs

Sculptural lamps under $150

Sculptural lamps under $150

Mushroom lamps, orb bases, and pleated cones.

St. Cyr Pool & Spa

LifeLine 3" Chlorine Tablets (8 OZ WRAPPED) 25lbs

St. Cyr Pool & Spa

Bullfrog Frog @Ease Simplicity Filter Housing Assembly, 2 PC 10-04669

St. Cyr Pool & Spa

Regal 3" Compressed Chlorinated Tabs (8lb)

14% off

Shock Me Pools

Cal Hypo 56% - Granule Pool Shock

(1)

St. Cyr Pool & Spa

St. Cyr Algaecide 60 1qt

St. Cyr Pool & Spa

Bullfrog A-Series Filter Pillow w/4 Snaps (2020-2022)

St. Cyr Pool & Spa

Spa Pure Filter Cleaner 1PT

(1)

St. Cyr Pool & Spa

CMP PowerClean 2" Union Gasket CMP21023030000

St. Cyr Pool & Spa

AquaChek Pro 5 In 1 Test Strips AC511710

St. Cyr Pool & Spa

St. Cyr PH Decrease 3lbs

St. Cyr Pool & Spa

Bullfrog Snapcap Clip (2013) for A,R,X & STIL Series

(1)

The Cover Guy

4.7

(1.2K)

St. Cyr Pool & Spa

SpaPure Oxidizing Shock 2.2 lbs

St. Cyr Pool & Spa

2lb Yellow Out

Exclusive offer available

Best Buy Pool Supply

Super Shockwave 1lb 73% Cal-Hypo Pool Shock - 24 x 1lb Bags

St. Cyr Pool & Spa

Phoenix Erace Metal & Scale Remover 1QT

St. Cyr Pool & Spa

Bullfrog Filter SnapCap Assembly W/Clips Hidden (2016-Present)

St. Cyr Pool & Spa

Phoenix SuperPhos Phosphate Remover 32oz

Brand spotlight: Made In Cookware

Stock your kitchen with restaurant-quality cookware.

St. Cyr Pool & Spa

Lifeline #1 PH Plus 5LBS

Cleartub

2023 A Series NeckEase NX JetPak

St. Cyr Pool & Spa

CMP PowerClean Cover O-Ring CMP26101060530

St. Cyr Pool & Spa

Leisure Time Renew 2.2 LB Chlorine Free Shock

30% off

upoolworld

50 lbs Pool shock 68% Chlorine Granules Calcium Hypochlorite

(3)

St. Cyr Pool & Spa

Solaxx SafeDip 6 in 1 Digital Chemistry Reader MET20A

St. Cyr Pool & Spa

Bullfrog Spas A Series Neck Pillow, Gray (2013-2015) 60-1255

St. Cyr Pool & Spa

SpaPure Brominating Tabs 1.5lb

High Country Pools & Spas, Inc.

REFRESH 50# CAL-HYPO SHOCK

St. Cyr Pool & Spa

St. Cyr Copper Algaecide 70 1qt

Atlas Spas and Swim Spas

Refresh + 1 lb shock

St. Cyr Pool & Spa

Lifeline #1 PH Plus 2LBS

St. Cyr Pool & Spa

Bullfrog EOS Ozone Replacement Carbon Filter 45-00812

St. Cyr Pool & Spa

Lifeline #5 Calcium Hardness Increaser 15LBS

St. Cyr Pool & Spa

Lifeline #2 PH Minus 6LBS

St. Cyr Pool & Spa

Bullfrog Spas Replacement Filter Cap (2018+) 10-00279

St. Cyr Pool & Spa

Lifeline Long Lasting Algaecide-Vinyl 32oz

St. Cyr Pool & Spa

Gizzmo Ultra Blowout Skimmer Plus, 16"L w/1.5" & 2" Threads, Green

Add a pop of color

Add a pop of color

Shop Brooklinen, 2Modern, Revival Rugs, and more

PBZ88500EA -H

Exclusive offer available

Pool Supply Depot

Pool Breeze Power 73% Cal Hypo Granular Chlorine Shock 1 lb bag, 24 Bags/Case

St. Cyr Pool & Spa

Air Supply Cyclone 3 HP 120 Volt 14 Amp Portable Pool Spa Air Blower

St. Cyr Pool & Spa

Bullfrog Spas Headrest for A Series 2016–2019

St. Cyr Pool & Spa

Spa Essentials The Cover Rock-IT

Simplified Pools

Refresh+ 25 lbs 73% Calcium Hypochlorite Pool Shock

Refresh+ 73% Cal-Hypo (1LB Bag)
Refresh+ 73% Cal-Hypo is a powerful, fast-dissolving pool shock treatment ideal for maintaining crystal clear and safe water in all swimming pool types.
Key Features & Benefits

Super-concentrated 73% calcium hypochlorite: Delivers reliable power to eliminate bacteria, control algae, and destroy organ

St. Cyr Pool & Spa

4.8 (49)