Hot Tub Chlorine

Showing 25 - 29 of 29 products

FROG @ease replacement SmartChlor cartridges for swim spas 3 pack, three silver oval cartridges

FROG @ease Replacement SmartChlor Cartridge for Swim Spas - 3 Pack

$134.85

FROG @ease Floating System for Swim Spas

$129.95

SpaGuard Chlorinating Concentrate 14 oz

$15.99

SpaGuard Chlorinating Concentrate 2 lbs

$31.99

SpaGuard Rapid-Dissolve Chlorinating Tabs

$36.99

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Shot Hot Tub Chlorine By What Your Hot Tub Needs

Shop hot tub chlorine granules from Leisure Time Spa 56, Sirona Spa Care, and SpaPure in 1 lb to 5 lb sizes for ongoing spa sanitizing.

SpaGuard Chlorinating Concentrate

Find SpaGuard Chlorinating Concentrate in 14 oz, 2 lb and 5 lb sizes for routine hot tub chlorine needs. Browse the full SpaGuard collection for more.

SpaGuard Rapid-Dissolve Chlorinating Tabs

Choose SpaGuard Rapid-Dissolve Chlorinating Tabs if you prefer tabs over scooping granules.

FROG @ease Floating & In-Line Systems

Shop the FROG @ease Floating Sanitizing System, the @ease+ 4-Month Hot Tub Bundle, and In-Line Value Packs for hot tubs with built-in cartridge holders. See more in the FROG collection.

FROG @ease SmartChlor Cartridges

Replace spent cartridges with a SmartChlor Cartridge Refill 3 Pack for floating systems, or an In-Line SmartChlor Cartridge 3 Pack or single in-line cartridge for in-line systems.

Hot Tub Shock & Start Up Kits

Keep fresh fills and heavy-use weekends covered with the Sirona Chlorine Start Up Kit and Sirona Replenish Spa Shock Oxidizer. For more options, browse our hot tub shock collection.

Why Shop From Hot Tub Pirate?

Chlorine runs out on its own schedule, usually the day before guests arrive. Reordering should take a few minutes, not a search across five stores.

A Focused Hot Tub Chlorine Selection

Granules, concentrate, tabs, cartridges and start-up kits from five brands sit on one hot tub chlorine page. Compare sizes and formats side by side before you buy.

Fast Shipping

Anything in stock ships within 12 business hours of your order. Weekend orders go out on Monday.

Free Shipping Over $50

Orders over $50 ship free, and orders over $75 also receive a free gift. Adding shock or test strips to a hot tub chlorine order is an easy way to reach either line.

Shop With Confidence

Every order is backed by a 100% satisfaction guarantee. If you are unsure which product fits your tub, contact us before you order.

Hot Tub Chlorine FAQs

What is the best hot tub chlorine for routine use?

Chlorinating granules are the most common choice for routine sanitizing. Leisure Time Spa 56, Sirona and SpaPure hot tub chlorine granules are all sold here, and the right size depends on how often you soak and how large your tub is.

Can I use pool chlorine in my hot tub?

Use chlorine labeled for spas and hot tubs. Pool chlorine is made for much larger volumes of water, so its form and dosing do not carry over to a hot tub. Pool owners can browse pool chlorine instead.

What is the difference between hot tub chlorine and hot tub shock?

Hot tub chlorine keeps sanitizer levels up day to day, while shock is a heavier dose of oxidizer used after heavy use or when the water smells strong or looks dull. Browse hot tub shock to compare options.

Do FROG @ease cartridges use chlorine?

Yes. FROG @ease uses SmartChlor chlorine cartridges, paired with a mineral cartridge, in floating or in-line systems. Check which one your tub uses before ordering.

How fast does Hot Tub Pirate ship hot tub chlorine?

In-stock orders ship within 12 business hours, and weekend orders ship Monday. Orders over $50 ship free, and every hot tub chlorine order has a 100% satisfaction guarantee.

Shop Hot Tub Chlorine

Running low on granules, a SmartChlor refill, or a start-up kit? Hot Tub Pirate brings hot tub chlorine together with hot tub water testing, hot tub water balancing, hot tub products, and pool products, so you can get your water-care essentials from one trusted source.

Shop Hot Tub Chlorine