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Availability:
In Stock.
Arrives
Tuesday, Oct 27
Size: 64-Ounces
Style: Clarifier
Features
- Concentrated Formula - Only 1 oz. treats 5, 000 gallons
- Clears cloudy water fast & prevents future hazy appearance
- Effective at varying temperature levels & range of chemical levels
- Use with all filter types - will not clog filters
- Reduces sanitizer demand by removing dirt particles
- Power Source Type: Manual
Description
Powerful water clarifier produces and maintains crystal clear pool water without affecting pH balance or other chemicals. Its thick, highly concentrated formulation is designed to clear cloudy water FAST.
Brand Name: GLB
UPC: 785336501659
Global Trade Identification Number: 00785336501659
Number of Packs: 1
Package Size Name: 64-Ounces
Number of Items: 1
Unit Count: 64 Fluid Ounces
Included Components: 1 x Robarb 20155A Super Blue Pool Clarifier
Item Type Name: Pool Clarifier
Manufacturer: Robarb
Model Number: 71205-SP-02BX
Manufacturer Part Number: 20155A
Best Sellers Rank: #16,873 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #43 in Swimming Pool Clarifiers & Enzymes
ASIN: B004VU8NBS
Customer Reviews: 4.5 out of 5 stars (4,364)
Item Form: Liquid
Product Benefits: Clears cloudy water fast and maintains crystal clear pool without affecting pH balance
Item Weight: 4 pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Oct 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 64-Ounces
Style: Clarifier
The best clarifier I’ve use. Excellent concentration, very little goes a long way and leaves my pool crystal clear. And then I have to use less chemicals. Great if you just got done with an algae bloom and the algaecide killed everything, now use this to help bind it together so the dead algae is picked by the filter and pool is cleaner sooner.
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Reviewed in the United States on August 11, 2026 by Nuno Santos
Size: 64-Ounces
Style: Clarifier
The cost for 2 bottles from Amazon was nothing compared to big box stores let alone local pool suppliers. One bottle will easily last me a year, as I only add a few ounces after I clean my filter cartridges. It definitely helps the filters catch smaller particulate, the water goes from clear to crystal in a few hours, and whether that is just because of his product, or the fact I keep my chlorine, pH and alkalinity well balanced is not something I am going to test to find out! All I know is that I bought 2 32oz bottles 1 year ago and have used half the bottle - while the price went up, at the current price it would cost me less than $1.50 a month for my 20,000gal pool - even less than the bulk baking soda or Salt that I buy from Sam's club. If you are comparing clarifiers - remember there are 2 kinds - flocculant and Clarifier - this is a clarifier. Flocculant makes particles combine so they fall to the bottom of the pool to be vacuumed up. Clarifier makes them easier to get filtered by your pool filter. This is a great clarifier!
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Reviewed in the United States on July 24, 2023 by CLTGUY
Size: 64-Ounces
Style: Clarifier
I put the suggested dose in the pool a month ago, and it is still perfectly blue
Reviewed in the United States on August 4, 2026 by Ron Dixon
Size: 64-Ounces
Style: Clarifier
Usually works great, clears the pool right up
Reviewed in the United States on August 18, 2026 by Krystal Jennette
Size: 64-Ounces
Style: Clarifier
I have used many brands of classifier through the years and this is my favorite to make nice sparkling water with ease. Having well water filling our pool makes things a little tricky as we have very very high iron levels. This was used after the first shock when full with the water turning a nice color of coffee, sad I know. However a good dose of this and running the sand filter overnight the water was almost clear in the 24 hours later. A second dose was added and bam another 24 hours later crystal clear water with some iron sitting on the bottom, vacuumed right up and very little passed through the filter and nothing that wasn't caught on a later vacuuming. I've used metal out in the past, what a waste that was. Shock to oxidize the iron, this to clump it, then clean the floor and walls. Unlike some I am typically lucky and only need this when opening for the year but I still highly recommend this to anyone wanting sparkling water. As a side note for anyone dealing with clear iron in their water, shock the water hard which will oxidize it, use this super blue to help clump it. Then a funny looking solution I've used for years before I upgraded my filter and pump. 2 five gallon buckets with a bunch of holes drilled in the sides, bottom and top. To the lid add fittings to fit sump pump discharge hose and use a T to connect those two with discharge hose to your return line in whatever way works for you. Add to the buckets 1-2 cheap pillow's stuffing each as it's the cheapest way I found to buy poly filling. A day to a few and all the iron gets trapped in those buckets, pull them out and return your return line to normal. Take great care to pull the buckets out as fast as possible from the pool and get them away from running back into the pool as the water coming out when pulling is NASTY. Simply pull the lid off the buckets and rinse out the pillow stuffing with a hose and be amazed. Instead of the pool pump return you can also use a sump pump, just be careful with them as many will rust to pieces in the pool water in no time, try for a cheap thermoplastic pump. This Solution saved us lots of money over having water trucked in by the water hauler companies.
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Reviewed in the United States on June 26, 2016 by J & A
Size: 64-Ounces
Style: Clarifier
SUPER BLUE does great work in making your pool crystal clear. Have used it for years and never disappoints.
Reviewed in the United States on August 7, 2026 by CHAIM YISRAEL
Size: 64-Ounces
Style: Clarifier
Perfect for our pool. Hubby pours it in at night. It sits overnight. Pump runs it through in the morning. We use it in our salt water pool every few months. It clarifys our water.
Reviewed in the United States on July 26, 2026 by Jen Harder
Size: 64-Ounces
Style: Clarifier
Glad to see the reviews that some had good results. But for me, after 6 weeks of thunder storms and downpours my pool water developed a green Algae bloom. Even though I shocked it after every rain storm, it literally turned into Pea soup and could not see even one inch below the surface of the water. During this time, every morning I Vacuumed the pool, then removed the filter element and cleaned it with the hose. The next morning nothing changed. I then tried Algaecide, Super Blue Pool Clarifier, and kept using the Shock each day, and again Vacuum the pool the next day, remove the filter element and clean it, but Nothing changed after a week. So, I kept searching the web for a solution. And, I found a video different from all the others that kept talking about Algaecide and water Clarifier. In the video, they did start talking about Algaecides and water Clarifier, But....... Then they went on to say when you have what I have happening to my pool water, I needed to simply Shock the hell out of the water. So feeling it was my last resort, I started Shocking my pool every day with HTH Pool Care Shock Advanced for Swimming Pools. Each day for 7 days I Shocked the water with 4, 1 pound packets of the HTH Shock, and the next morning Vacuum the pool, remove the filter element and clean it. Then Shock it again with 4 packets of HTH. Each day I could see a slight improvement in the water. Then, each day I did this, the water cleared up more and more until FINALLY, the water was now Crystal Clear by the 7th day. Just info for what it's worth.
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Reviewed in the United States on August 19, 2023 by Rockin Dif