FROG Serene® Replacement Cartridge, Mineral

The best value on premium, pro-grade chlorine tablets

Properly maintaining your pool chemistry is the most important thing you can do to keep your pool, clean, clear and safe. Doheny's 10lb 3 in chlorine tablets are made using a state-of-the-art manufacturing process to produce super-condensed chlorine tablets that dissolve slowly and last longer. This not only saves you money, it also provides consistent, reliable protection against bacteria and algae growth. Plus, our high-quality chlorine tablets are stronger with less odor because greater compression seals the chlorine in place.

The best value for your money, each individually wrapped chlorine tablet contains a full 8 ounces with 99% pure Trichloro-S-Triazinetrione and 90% available stabilized chlorine without any fillers or binders. That's the strongest concentration available–just what you need to keep your pool clean and clear. And our chlorine tablets contain a UV inhibitor that resists harmful UV rays to maintain consistent, desirable chlorine levels even on the sunniest days.

For safety and convenience, Doheny's 10lb 3 in chlorine tablets are shipped in a locked, easy-open bucket, the best in the industry. Spend up to 50% less than competitors with Doheny's fresh, pure, uncontaminated pool chlorine tabs at a volume discount price.

Our meticulous production process makes all the difference. A chlorine tablet's hardness, density, and solubility greatly affect the chlorine release rate and are dependent on the heat and pressure used during tablet formation. Raw chlorine is a commodity - making chlorine tablets is an art form. We have been chlorine perfectionists for over 50 years and it shows in our premium-grade 3 in chlorine tablets.

CHLORINE-FREE! Restore sparkle and clarity to pool or spa water with this strong oxidizing agent.
Oxi-Shock oxidizes ANY POOL and you can start swimming in only 15 minutes. The active ingredient potassium monopersulfate effectively keeps water clear while controlling contaminants. Safe for all pool surfaces. Recommended dosage: 1 lb. per 10,000 gallons every 10 days.

Doheny’s Non-Chlorine Oxi-Shock

Get rid of harmful contaminants in your water and leave your pool looking crystal clear with Non-Chlorine Oxi-Shock, a powerful chlorine alternative from Doheny’s. Easy on the eyes and skin, non-chlorine pool shock is an effective way to keep your pool or spa clean without the use of harsh chlorine. Safe for any pool surface, the active ingredient, potassium monopersulfate, is a powerful oxidizer that will have your water sparkling all year long! Plus it’s fast-acting so you can start swimming in just 15 minutes. Chlorine-free shock is a great choice for end-of-season pool closing as it won’t bleach surfaces. Doheny’s Non-Chlorine Oxi-Shock is the only shock available that can be used with bromine sanitizer.

How to Use Chlorine Free Shock

To use Doheny’s Non-Chlorine Oxi-Shock in your swimming pool, the recommended dose is 1 pound for every 10,000 gallons of water. For regular maintenance, non-chlorine pool shock should be added weekly. It is also recommended to add at pool opening and closing, after heavy rainfall, and after extensive pool use.

In your spa, the recommended dose of Oxi-Shock is 2 ounces for every 300 gallons of water. Chlorine-free shock should be added to the spa after every use, or once a week if it is not being used.

Not sure if Oxi-Shock is right for your pool? Call the experts at Doheny’s today at 800-574-7665 or visit our website at doheny.com.

CHLORINE-FREE! Restore sparkle and clarity to pool or spa water with this strong oxidizing agent.
Oxi-Shock oxidizes ANY POOL and you can start swimming in only 15 minutes. The active ingredient potassium monopersulfate effectively keeps water clear while controlling contaminants. Safe for all pool surfaces. Recommended dosage: 1 lb. per 10,000 gallons every 10 days.