Poolife® NST® Prime Tablets 4.5 lbs
Product Overview
A proven non-stabilized tablet that delivers continuous sanitization without driving up cyanuric acid levels.
Pool techs reach for Poolife® NST® Prime Tablets in this compact 4.5 LB pail (also manufactured in 9 lbs, 20.2 lbs, and 39.4 lbs) when managing routine sanitation without adding stabilizer. Formulated with Calcium Hypochlorite (70.2%), these slow-dissolving octagon tablets continuously sanitize pool water without cyanuric acid buildup. For homeowners using this 4.5 lbs size, it reliably maintains a 1–3 ppm free chlorine residual while protecting water balance.
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Benefits & What Makes It Different
Zero Stabilizer Addition
Formulated with 70.2% Calcium Hypochlorite so you sanitize without adding cyanuric acid or stabilizer to the pool.
Extended-Release Octagon Shape
Engineered for controlled, slow-dissolving delivery over several days in skimmers, feeders, or dedicated floaters.
Versatile Sizing Lineup
This 4.5 LB container is perfect for routine maintenance, with 4.5 lbs, 9 lbs, 20.2 lbs, and 39.4 lbs options available.
Product Details
Calcium Hypochlorite 70.2%
1 tablet per 10,000 gallons weekly to maintain 1–3 ppm free chlorine
Compatibility
- Compatible with salt systems, ozone, and mineral purification setups
- Do not mix directly with trichlor, dichlor, or any acidic chemicals
When To Use This
Pro Tip
Because these Calcium Hypochlorite tablets do not add stabilizer, verify that your cyanuric acid is kept in the ideal 30–50 ppm range using a separate stabilizer, especially in hot southern climates where intense UV rays degrade unstabilized chlorine quickly.
Common Questions & Instructions
How do Poolife NST Prime Tablets prevent chlorine lock?
Unlike traditional trichlor tablets, Poolife NST Prime contains 70.2% Calcium Hypochlorite, introducing zero cyanuric acid or stabilizer to the water to keep free chlorine active at 1–3 ppm.
What is the standard dosing for this 4.5 lbs pail?
With total alkalinity balanced to 80–120 ppm and pH at 7.2–7.6, add approximately 1 tablet per 10,000 gallons weekly to maintain free chlorine between 1–3 ppm.
Can I mix Calcium Hypochlorite NST Prime tablets with standard trichlor tabs?
Never mix Calcium Hypochlorite tablets with trichlor or dichlor in the same feeder or skimmer, as combining different chlorine chemistries poses an immediate safety hazard.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
