
Water Care & Chemicals
Top-Rated Hot Tub Chemicals & Water Care Solutions | Fast Shipping at Hot Tub Things

Hot Tub Things Filters
Upgrade your spa with premium hot tub filters from Hot Tub Things.

Accessories & Spa Essentials
Elevate relaxation and convenience with premium hot tub accessories & spa essentials. Shop the best add-ons for comfort, style, and crystal-clear water, all in one place.

Ultimate Comfort Hot Tub Pillows
Soft, durable, and perfectly contoured hot tub pillows crafted to deliver ultimate relaxation and spa enjoyment.
Shop Our Best Sellers
Shop the top hot tub essentials trusted for comfort and water care—your shortcut to a premium spa experience.
Frog® @ease® SmartChlor® Cartridge 3‑Pack – Bullfrog® Spas Classic – part #10‑01053
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Bullfrog® Wellspring 282 Coreless Filter 2‑Pack (A, R & X Series, 2018+) – part #10‑00416
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Hot Tub Things® Oxidizing Spa Shock – Chlorine-Free Oxygen Cleaner (1 lb / 2.2 lb / 5 lb)
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Hot Tub Things® 282 Microban® Filter 2‑Pack – Replaces Bullfrog® 10‑00282 – for A/R/X Series (2018+) – part #HTT‑10‑00416
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Filters, Adapters & Cartridges
Hot Tub Things™
Hot Tub Things® Oxidizing Spa Shock – Chlorine-Free Oxygen Cleaner (1 lb / 2.2 lb / 5 lb)
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Hot Tub Things® Chlorinating Granules – Spa & Hot Tub Sanitizer (1 lb / 2 lb / 5 lb)
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Hot Tub Things® pH & Alkalinity Up – Spa Water Balancer (1 lb & 2 lb)
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Hot Tub Things® Spa Clarifier - Clears Cloudy Spa Water (16 fl oz & 32 fl oz)
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Hot Tub Things® Metal Out (16 fl oz) – Spa & Hot Tub Stain & Scale Preventer
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Hot Tub Things® Calcium Increaser – 32 oz Spa Hardness Booster
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Pillows, Headrests & Comfort Accessories
Frog® Hot Tub Water Care Systems – Mineral Sanitizers for Crystal Clear Water
Frog® @ease® SmartChlor® Cartridge 3‑Pack – Bullfrog® Spas Classic – part #10‑01053
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Frog® @ease® SmartChlor® Sanitizing System – Bullfrog® Spas Classic – part #10‑01053
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Frog® @ease® SmartChlor® Cartridge 3‑Pack – Sundance® Spas – part #6473-297
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Frog® @ease® SmartChlor® Sanitizing System – Sundance® Spas – part #6473-296
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Frog® @ease® SmartChlor® Cartridge 3‑Pack – Jacuzzi® Hot Tubs – part #6473-295
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Frog® @ease® SmartChlor® Sanitizing System – Jacuzzi® Hot Tubs – part #6473-294
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Why Customers Love Us!
"I love supporting a Bay Area business, and Hot Tub Things never disappoints. My filter order arrived the next day, and everything was exactly as described. Definitely my go-to from now on."
Amanda K.
"After checking multiple stores, Hot Tub Things had the best prices on my Jacuzzi chemicals. The order process was smooth, and I even got a thank-you note in my package. It’s nice to shop with a company that values its customers."
Michael S.
"I ordered replacement filters and some water care supplies, and they arrived within just two days—faster than I expected! One item was out of stock, but customer service emailed me right away and offered a great alternative. Truly impressed."
Sarah P.
"Finding the right part for my Sundance spa used to be a nightmare until I found this site. The part numbers are clear, and their compatibility notes helped me avoid a costly mistake. Five stars for accuracy and ease!"
Lisa J.
"I’ve placed multiple orders over the last six months, and everything has gone smoothly. Their email updates keep me informed, and I appreciate their curated product suggestions. It’s the only place I shop for my hot tub now."
Danielle T.
"I called with a question about the right filter size for my Sundance spa, and the rep walked me through everything. It’s rare to find that kind of expertise these days. Excellent experience from start to finish."
David W.
"I’ve ordered multiple times now—steps, covers, filters—and every single order has been perfect. Fast shipping, well-packed products, and top-notch quality. Highly recommend for anyone in the Bay Area."
Rachel P.
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On any order $100+ (exceptions apply).
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Purchase parts with confidence.
30 Day Risk-Free Returns
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