Skip to Content

HTH 67033 Ultimate 1Qt Algae Guard Non-foaming, All-Purpose, Liquid Swimming Pool Algaecide Cleanser

  • mfr: 67089
  • SKU: HTH-8180044
Out Of Stock
Request stock alert

Available options:

  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Additional options:

Product highlights

  • Swimming Pool Algaecide Cleanser
  • Formulated to prevent and kill all types of algae
  • Non-foaming, all-purpose algaecide guard
  • Non-Staining formula
  • Easy-to-use and fast-acting solution
  • Just 4 fl. oz. works in 10000 gallons of water
  • Compatible with chlorine, bromine, and saltwater systems
  • Swim almost immediately after applying Algaecide to pool
  • Available in 1-quart volume

HTH 67033 Ultimate 1Qt Algae Guard Non-foaming, All-Purpose, Liquid Swimming Pool Algaecide Cleanser

The HTH Ultimate Algae Guard Swimming Pool Algaecide Cleanser is formulated to prevent and kill all types of algae when used regularly in your swimming pool. Apply this non-foaming, all-purpose algaecide guard directly to pool water, and you will be able to swim almost immediately afterward, preventing algae growth for up to three months. Make sure that your pool stays crystal clear while preventing slimy surfaces and the smells that algae can bring.

Works Quickly

The HTH Super Algae Guard quickly kills and prevents green, black, and yellow algae, so you can get back to swimming as soon as possible.

Concentrated Formula

Just 4 oz. works in 10000 gallons of water to kill algae spores and prevent regrowth. Plus, it is compatible with chlorine, bromine, and saltwater systems.

Easy to Use

Simply add the product directly to the pool in several places with the pump running. Keep the pump running for several hours. Wait 15 minutes before entering the pool.

Brush and Remove Debris

To prevent algae growth, brush your pool weekly to remove any spores that have attached to the walls or steps. Trees and plants are a common source of algae spores, so trim leaves and branches back as much as possible and remove leaves and other debris from your pool right away.

Clean Your Filter

Your filter effectively removes dead algae spores from your pool. Use HTH Filter Cleaner to clean all filter types and help the filtration system work more efficiently.

Add Chemicals

Shock your pool weekly to boost chlorine levels and keep your water crystal clear. Using an HTH shock treatment is one of the best ways to protect your pool from algae. For best results, use an algaecide like HTH Super Algae Guard 12 to 16 hours after the shock treatment to further prevent future algae growth.


Configuration Core
Pack Size Single Pack
Color Multicolor


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews


HTH 67033 Ultimate 1Qt Algae Guard Non-foaming, All-Purpose, Liquid Swimming Pool Algaecide Cleanser SKU: HTH-8180044

  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 2.96ms
  • bvseo-msg: HTTP status code of 404 was returned; HTTP status code of 404 was returned;