Voted “Most Innovative Product for Service Professionals*”

90-Day Algae Protection Guarantee, lasts up to 6 months

Drop ‘n Go prefilled pods in the skimmer basket to prevent & cure algae make your job easy

No measuring, no spilling, no leaking and no over/under dosing

25% more stain inhibitors to protect all your pool surfaces from staining

Learn more about the Algae Blocker 4Pro Launch Offer!

See How FROG Algae Blocker 4Pro can

Save You Time. Boost Your Profits. Make Your Job Easier

The Alternative Way to Prevent and Kill Algae

Prevent & Kill Algae – Easier. Faster. More Effectively.
Guaranteed. Only For Pros.

Leave glugging, spilling, staining behind. Use less chemicals, less time, make more profits.

  • Dry, concentrated formula
  • 1 prefilled Pod per 10,000 gallons
  • 90-Day Algae Protection Guarantee
  • Drop ‘n Go™ – drop Pods in the skimmer
  • Up to 7X lighter than a quart of liquid algaecide
  • 4x Stain Guard™ protection with 4 stain inhibitors

Algae Blocker 4Pro instantly starts preventing algae and lasts up to 6 months.

Algae Blocker 4Pro Offers Less Work, in Less Time with More Profits:

  • 4x Stain Guard™ protection
  • No Weekly Dosing
  • 90-Day Algae Protection Guarantee
  • Cleanup is much easier
  • Algae free pools – no callbacks

Use one prefilled Pod per 10,000 gallons for perfect dosing that maximizes performance and profitability every time.

Designed for the Pros by the Pros:

  • Gives you peace of mind
  • OFF the internet (NOT sold on Amazon)
  • Light & easier to transport
  • Eliminates weekly dosing
  • Offers 1 SKU that prevents & cures algae
  • Use 1 pod per 10,000 gallons

Learn more about the Algae Blocker 4Pro Launch Offer!

frequently asked questions

Find answers to common FROG Algae Blocker 4Pros questions.

It’s a copper based dry algaecide in unique pods that can be used to cure an algae outbreak (yellow or green) or prevent algae (yellow, green or black) from happening for up to 6 months.

Typically, in a few hours but no more than 24. At that time, the empty pod will float to the top of the skimmer. You can easily remove and discard it on your next service call.

When you use FROG Algae Blocker 4Pro as a preventative application, start with a clean filter.
Do not clean or backwash the filter for at least 2 weeks after using a pod.

If a pool gets algae within 90 days of using FROG Algae Blocker 4Pro, we will supply enough FROG Algae Blocker 4Pro to cure the algae outbreak at no charge. That takes the worry away from you and you can also tell your customers that this product is guaranteed.

Make sure the bucket is sealed and always store in a cool, dry, well-ventilated area until ready to use.
It’s important to keep the desiccants in the bucket, do not discard them.

It has a 4X Stain Guard – 4 distinct stain inhibitors that keep the copper from falling out of solution and staining surfaces.

Both use the same copper, but PoolRX uses less, so you often need a booster to keep the pool algae free for 6 months. PoolRX also has a much larger footprint and has to stay in a pump or skimmer basket for 6 months. FROG Algae Blocker 4Pro dispenses within 24 hours with no booster needed and you can discard the empty pod upon the next service visit. That means you don’t have to clean around anything.
FROG Algae Blocker 4Pro also contains 25% more stain inhibitors, so you can use it on smaller pools than PoolRx’s products, plus, it has much less chance of staining than PoolRx’s product line.

  • Success doesn’t just happen. It’s a direct result of King Technology’s 45+ years of putting science and technology to work, to simplify the complicated, ultimately making everyone’s lives easier and keeping customers happy.

    Customer Profile Image

    Brett Libby

    Principal Scientist, King Technology

Our products

Related products that our pros love

  • Recommended
    InstantFrod Product
    • Pools

    Instant FROG®

     

    • Sits in the skimmer basket, works for 6 months
    • Reduces chlorine use up to 50%*
    • Kills bacteria & prevents cloudy, green pool water problems
    Learn More

*Compared to the minimum EPA recommended chlorine level of 1.0 ppm for a stabilized swimming pool. ∞For pools, hot tubs and swim spas.

*2024 International Pool Spa Patio Expo