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HTH Plus Granule Cal-Shock 50 lb
HTH Plus Granule Cal-Shock 50 lb
HTH Plus Granule Cal-Shock 50 lb

HTH Plus Granule Cal-Shock 50 lb

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A bulk 50-lb granular shock for pool owners who don't want to reorder every week.
Hth MPN 88507
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.

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About Product Overview

HTH Cal-Shock Plus is a granular pool shock treatment packaged in a bulk 50-pound container, sized for pool owners and service pros who need to treat larger volumes of water or restock through a busy season. As part of HTH's Shock product line, it's formulated for routine pool maintenance where regular shocking keeps water clear and swim-ready.

The 50-pound size cuts down on how often you're reordering, which matters if you're running multiple pools or maintaining a large one on a set schedule. Manufactured in the USA and sold under the HTH brand, it fits into a standard pool chemical rotation alongside sanitizers and balancers.

  • Brand: HTH
  • Sub-brand: Plus
  • Product type: Cal-Shock
  • Form: Granule
  • Container size: 50 lbs
  • 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 88507
UPC 073187885074
Weight 54 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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