SpaChoice 21-Pounds Premium Pool Stabilizer and Conditioner | Concentrated Cyanuric Acid for Pools, Helps Chlorine Last Longer, 6 ounces raises CYA 10 ppm per 5,000 gallons
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Good price
$84.86 is 10% below the $94.29 it normally sells for.
- Now
- $84.86
- Normally
- $94.29
- Lowest in 110 days
- $68.99(Oct 22)
- Highest
- $114.99
Where today's price sits
Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.
Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)
Price history
Tracked since Jul 26 · 110 days · 10 price changes
Ahead of Black Friday 2026 (Nov 27), it is already 10% below its normal price of $94.29. SpaChoice 21-Pounds Premium Pool Stabilizer and Conditioner price history, checked Nov 13, 2026: current price $84.86, normal (typical) price $94.29, average $103.47 over 110 days, lowest $68.99 (Oct 22, 2026), highest $114.99 (Jul 29, 2026).
Loading the price chart.
- Price
- Not checked for 3+ days
- Normal $94.29
- 5% or more below normal
How often does it drop below normal?
In the 110 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 4 days. The last time ended Oct 29. It's below normal right now, for less than an hour so far.
A count of what happened, not a prediction.
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Get this as JSONThe same verdict and prices, from the TrackPin API.
curl https://trackpin.co/api/v1/product/B0H1N9J93K \
-H "x-api-key: $TRACKPIN_API_KEY"const res = await fetch("https://trackpin.co/api/v1/product/B0H1N9J93K", {
headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();
console.log(product.verdict.label, product.price.reference_cents);import os, requests
r = requests.get(
"https://trackpin.co/api/v1/product/B0H1N9J93K",
headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()
print(product["verdict"]["label"], product["price"]["reference_cents"])This is exactly what the API returns for this product. Free keys include 100 requests a day.
Request a key{
"asin": "B0H1N9J93K",
"title": "SpaChoice 21-Pounds Premium Pool Stabilizer and Conditioner | Concentrated Cyanuric Acid for Pools, Helps Chlorine Last Longer, 6 ounces raises CYA 10 ppm per 5,000 gallons",
"image": "https://m.media-amazon.com/images/I/61b2j9AmOxL._AC_SL500_.jpg",
"currency": "USD",
"category": "Lawn & Patio",
"category_label": "Patio & Garden",
"in_stock": true,
"price": {
"current_cents": 8486,
"reference_cents": 9429,
"discount_pct": 10,
"is_deal": true,
"observed_at": 1794608215329,
"changed_at": 1794608215329,
"checked_at": 1794608215329,
"source": "stored"
},
"verdict": {
"label": "good",
"text": "Good price",
"pct_vs_normal": 10,
"evidence": "strong",
"stale": false,
"suspect": false,
"steady_since": null,
"sentence": "Good price. $84.86 is 10% below the $94.29 it normally sells for."
},
"listing_claim": null,
"stats": {
"min_cents": 6899,
"max_cents": 11499,
"avg_cents": 10347,
"history_days": 110,
"price_levels": 38,
"price_changes": 10,
"distinct_prices": 9,
"lowest_at": 1792644872423
},
"history": [
{
"price_cents": 9774,
"from": 1792732455197,
"to": 1793127830269
},
{
"price_cents": 8797,
"from": 1793144239008,
"to": 1793297311903
},
{
"price_cents": 9429,
"from": 1793308578512,
"to": 1794390179764
},
{
"price_cents": 9072,
"from": 1794398825725,
"to": 1794595751439
},
{
"price_cents": 8486,
"from": 1794608215329,
"to": 1794608215329
}
],
"last_seen": 1794608224604
}
// … 33 more steps in the full responseNormal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.