
Sirona® Brom Tabs
Product Overview
For hot tubs and warm-water spas where high heat accelerates chemical burnoff, Sirona® Brom Tabs deliver steady, slow-dissolving sanitizer protection.
For homeowners seeking reliable sanitation with Sirona® Brom Tabs, this 2.2 lbs. container features an advanced active hydantoin blend (54.2%, 28.9%, 15.9%) engineered for hot water stability. Unlike conventional chlorine tablets, bromine remains an active sanitizer even after binding with organic waste to form bromamines, preventing harsh chemical spikes. Designed for erosion feeders and floaters, these slow-dissolving tablets provide continuous baseline sanitization without adding stabilizer.
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Benefits & What Makes It Different
High-Temperature Stability
Resists thermal degradation in hot tubs and spas, keeping an active bromine residual intact where chlorine rapidly gasses off.
Slow-Erosion Hydantoin Blend
Provides sustained chemical release over several days to maintain stable water parameters with fewer manual chemical additions.
Surface and Equipment Safe
Formulated to protect acrylic, fiberglass, vinyl, and tile surfaces while reducing foaming tendencies and erratic pH swings.
Product Details
Hydantoin blend: 1-bromo-3-chloro-5,5-dimethylhydantoin, 1,3-dichloro-5,5-dimethylhydantoin, 1,3-dichloro-5-ethyl-5-methylhydantoin (54.2%, 28.9%, 15.9%)
Fill floating dispenser or automatic feeder to maintain 2–4 ppm active bromine residual in spa water.
Compatibility
- Compatible with mineral purification systems, ozone generators, and standard spa filtration
- DANGER: Do not mix directly with trichlor, dichlor, or other dry chemical oxidizers in the same feeder
When To Use This
Pro Tip
In regions with high ambient temperatures or heavy bather loads, establish an initial bromide reserve of 20–30 ppm using sodium bromide before placing Sirona Brom Tabs in your floating dispenser to ensure instant sanitizing activity.
Common Questions & Instructions
What is the ideal bromine level when using Sirona Brom Tabs in a spa?
Maintain an active bromine residual between 2–4 ppm in residential spas (compared to the standard 1–3 ppm free chlorine range for pools). Keep your pH dialed between 7.2–7.6 and total alkalinity at 80–120 ppm for optimal sanitizing efficiency.
Do Sirona Brom Tabs add cyanuric acid or calcium hardness to the water?
No, these bromine tablets do not contain cyanuric acid or calcium hypochlorite, meaning they will not cause stabilizer buildup (CYA) or increase your calcium hardness beyond the ideal 200–400 ppm range.
Can I mix Sirona Brom Tabs in a chemical feeder that previously held trichlor?
No. Never mix bromine tablets with chlorine tablets or any other dry chemicals in the same dispenser. Combining dry chlorine and dry bromine in an enclosed feeder creates a severe chemical reaction and fire 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.



