Clearer, safer pool water with HTH 42049 Chlorine Tabs Keep your swimming area inviting all season with this slow-dissolving chlorine treatment. The tabs release sanitizer steadily while a built-in clarifier helps reduce cloudiness, supporting crisper water and better visibility as you relax by the...

One-step pool care for cleaner, clearer water The HTH 3-inch Chlorine Tabs Advanced combines sanitizer, clarifier, and algaecide in a single tab, offering a simple approach to pool maintenance. This compact tab is designed to help keep water inviting and balanced, making routine upkeep...

HTH 52030B Swimming Pool Care Shock — Cal Hypo formula Keep your pool water sparkling with a multipurpose shock treatment designed to address common water issues in one easy step. The Cal Hypo–based formula works as a shock, sanitizer, and clarifier, helping to reduce...

Overview The HTH 52036R Pool Care Shock Advanced delivers a fast-dissolving, multi-functional solution for weekly pool maintenance. Built on a Cal Hypo base, this 4-in-1 shock treatment targets common water quality challenges while aiming to keep water inviting and clear for everyday swimming and...

OverviewThe HTH 2-Step Green to Blue Swimming Pool System is designed to tackle severe algae blooms and restore water clarity. This ready-to-use kit combines Pack I, a robust algae-fighting shock based on Cal Hypo, with Pack II, a powerful flocculant that helps fine particles...

Effortless, Effective Pool Care with HTH Shock Ultra HTH 52040B Shock Ultra brings a Cal Hypo-based solution to residential pools, offering a simple path to refreshed water. Packaged as a 1‑pound sachet within a convenient six-pack, it’s designed for regular use across a range...

Overview HTH 52047 Swimming Pool Care Salt Shock is designed for saltwater pools with a chlorine generator. This stabilised dichlor-based formula delivers fast-acting sanitization while staying gentle on pool surfaces and equipment. Each pack contains five convenient 12-ounce packets, enough to treat up to...

You’re all clear with HTH. Algae Guard Advanced is designed to help keep pool water crystal clear by targeting algae growth. This fast-acting, non-foaming formula can be added directly to pool water, so swimmers can enjoy the pool soon after dosing. Use it as...

Powerful, Long-Lasting Algae Protection HTH Algae Guard Ultra 32oz delivers strong defense against algae blooms, designed to help pool water stay clearer for longer. This non-foaming formula targets greens, blacks, and mustard algae while preventing regrowth, so you can enjoy your pool with fewer...

Overview HTH Shock Advanced is a fast-dissolving Cal Hypo pool shock designed for simple, weekly care. This 4-in-1 formula targets common water challenges, helping to keep your水 sparkling clean by addressing bacteria and algae, reducing chlorine odor, and quickly restoring a crystal-clear look after...