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HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb
HTH Pool Care Granule Chlorinating Chemicals 18 lb

HTH Pool Care Granule Chlorinating Chemicals 18 lb

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Fast-dissolving 56% chlorine granules that knock out bacteria and algae to keep pool water clear all season.
Hth MPN 22018
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Hth item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

HTH Ultimate Granular Chlorine is a fast-dissolving sanitizer for keeping pool water clear and swim-ready. With 56% available chlorine, it kills bacteria and algae that cause cloudy water, odors, and irritation, making it a solid choice for regular pool maintenance through the swim season. The granular form mixes into water easily, so there's no need to pre-dissolve before adding it to your pool.

  • Available chlorine: 56% (40%-59% range)
  • Product form: Granule
  • Container size: 18 lb
  • Application: Sanitize
  • Usage: Pool
  • Made in the USA

The Details Specifications

Ships Ground Travels by ground for safe handling — common for items with a lithium battery, aerosol, or liquid inside. Nothing extra to do on your end; it simply ships by truck instead of by air.
Non-Returnable This product cannot be returned. All sales final.
Brand Hth
Model / MPN 22018
UPC 073187220189
Weight 21 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
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$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
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Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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