Lo-Chlor is Australia's most trusted specialist pool and spa chemical manufacturer globally recognised and exporting to 25+ countries. Their range covers algaecides, clarifiers, phosphate removers, stain treatments, stabilisers, spa care, equipment aids and more, every product formulated for Australian water chemistry and climate.
Lo-Chlor Ultra-Kleer 2-in-1 Clarifier combines a high-performance pool clarifier with an algae inhibitor in a single product — clearing cloudy water while simultaneously providing background algae protection.
The 2-in-1 formula is particularly valuable for pool owners who want to simplify their chemical routine — replacing two separate products with a single weekly or as-needed treatment that addresses both clarity and algae prevention at once.
Lo-Chlor Ultra-Kleer 2-in-1 details
Clarifier plus algae inhibitor in one product
Clears cloudy water while preventing algae establishment
Safe for all filter types — sand, cartridge and DE
pH neutral — does not affect water balance
Available in 1L and 5L
Use weekly as maintenance, or as needed for cloudiness
Choosing your size: The 1L is ideal for most residential pool owners trying the product or maintaining a smaller pool. The 5L is better value for larger pools or ongoing weekly use.
If you want a dedicated clarifier without the algae inhibitor, Lo-Chlor Miraclear Liquid Clarifier is 20% stronger for clarity alone. For the extended 4-in-1 formula that also handles phosphate removal and scale prevention, see Lo-Chlor Ultra-Kleer 4-in-1. For heavy cloudiness requiring floor settlement, Lo-Chlor Maxi-Floc Plus is the stronger flocculant option.
🔍 Does it suit my pool?▾
Select your pool type or surface for specific guidance.
🧂Salt chlorinated▾
✓ Compatible — works with all salt systems
Fully compatible with salt chlorination systems. Apply with the pump running.
💧Traditional chlorine▾
✓ Compatible — works with all chlorine systems
Safe for all chlorine pool systems. Apply with the pump running and circulate for at least 2 hours.
🪨Mineral / magnesium▾
✓ Compatible — safe for mineral systems
Safe for mineral and magnesium pool systems. Does not interact with mineral sanitiser chemistry.
⚡Ionised / Nature2▾
✓ Compatible — safe for ionised systems
Fully compatible with ionised and Nature2 pool systems.
🏊Fibreglass▾
✓ Compatible — safe for fibreglass
Safe for fibreglass surfaces at recommended doses.
🧱Concrete / pebblecrete▾
✓ Compatible — safe for all hard surfaces
Safe for concrete, pebblecrete and tiled surfaces at recommended doses.
💊 Dosage guide▾
Add directly to pool water with the pump running. Do not add to the skimmer box. Run filter continuously for at least 8 hours after application.
Weekly maintenance
100 ml
per 50,000 L
Regular weekly dose for ongoing clarity and algae inhibition. Add after backwashing for best results.
Cloudy water treatment
250 ml
per 50,000 L
Standard treatment dose. Results typically visible within 4–8 hours. Run filter continuously.
Large pool (75,000+ L)
Scale dose
proportionally
Calculate dose per 50,000L and adjust for pool volume. Broadcast evenly across pool surface.
Post-shock treatment
150 ml
per 50,000 L
After a chlorine shock, add Ultra-Kleer to clear fine particles and maintain the algae inhibitor level.
❓ FAQ▾
What does the algae inhibitor in the 2-in-1 do?▾
The algae inhibitor provides background protection against green and black algae — reducing the likelihood of algae establishing between your regular algaecide doses. It's not a substitute for a dedicated algaecide like Lo-Chlor Pool Algaecide, but it adds an extra layer of protection within the clarifier itself.
How does this compare to Ultra-Kleer 4-in-1?▾
The 2-in-1 covers clarification and algae inhibition. The Ultra-Kleer 4-in-1 adds phosphate removal and scale prevention to those two functions. If you're on bore water or hard water, or you have a recurring phosphate problem, the 4-in-1 is the more comprehensive choice. If you primarily want clarity plus algae protection, the 2-in-1 is simpler and more economical.
Can I use this in a spa or small pool?▾
Yes — scale the dose proportionally for your water volume. For a 10,000L spa, use approximately 20ml per weekly treatment.
Will it affect my saltwater pool?▾
No — Ultra-Kleer 2-in-1 is pH neutral and does not interact with salt chlorination systems or any sanitiser type.