
2 lb 1" Chlorinated Tabs Bottle
Product Overview
A proven choice for smaller pools, floaters, and automatic feeders requiring consistent chlorine output.
Formulated with 99.0% Trichloro-s-triazinetrione, this 2 LBS (2 lb) bottle of Regal 1-inch tablets delivers 90% available chlorine alongside built-in stabilizer to protect against ultraviolet degradation. Each 0.5 oz tablet dissolves slowly and evenly in floaters or automatic chlorinators, making it ideal for tight spaces where 3-inch pucks are too large. In hot climates with intense sun exposure, the integrated cyanuric acid prevents rapid chlorine burn-off.
Customer Reviews
No reviews yet — bought this one? You'd be first.
Benefits & What Makes It Different
99.0% Trichloro-s-triazinetrione
Delivers 90% available chlorine in a concentrated, slow-dissolving format that maintains 1–3 ppm residual sanitization.
Built-In Cyanuric Acid Stabilizer
Protects free chlorine molecules from rapid breakdown under direct sunlight, extending tablet lifespan in high UV zones.
Compact 0.5 oz Tablet Profile
Sized at 0.5 oz (1-inch) for easy loading into smaller erosion feeders, floating dispensers, and spa chlorinators without jamming.
Product Details
Trichloro-s-triazinetrione 99.0%
7 to 10 tablets (0.5 oz each) per 10,000 gallons weekly via floater or feeder to maintain 1–3 ppm free chlorine.
Compatibility
- Never mix directly with Calcium Hypochlorite (cal-hypo), liquid bleach, or other forms of concentrated chlorine.
- Do not pre-dissolve in water or add directly to the skimmer; feed exclusively through an approved floater or offline/in-line feeder.
- Wait until free chlorine drops to 1–3 ppm before allowing swimmers to re-enter.
When To Use This
Pro Tip
Because 1-inch tabs have more surface-area-to-volume ratio than 3-inch pucks, they dissolve faster—monitor your CYA levels closely in warmer months to ensure stabilizer stays between 30–50 ppm.
Common Questions & Instructions
How many 1-inch Regal chlorine tablets should I add to my pool?
For regular maintenance, add 7 to 10 of the 0.5 oz tablets per 10,000 gallons weekly into an erosion feeder or floating dispenser to hold free chlorine within the ideal 1–3 ppm range.
Does this 2 lb bottle of Regal 1-inch chlorinated tabs add cyanuric acid to the water?
Yes. Because the active ingredient is 99.0% Trichloro-s-triazinetrione, it adds cyanuric acid (stabilizer) with every dose. Keep CYA within the recommended 30–50 ppm range by testing monthly.
Can I put 1-inch trichlor tablets directly into my skimmer basket?
We advise against placing trichlor tablets directly in skimmer baskets because the high localized acidity can corrode pump seals, gaskets, and heater components when the pump is off.
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.



