This deal has expired. Everything below is a historical record of what this product cost on 22 August 2026. It is not a current offer and the price will have changed.

HTH 52039, Swimming Pool Care Shock Ultra, 1 Pack

Damn Good Score: 82 out of 100
Price then: $5.50 on 22 August 2026
Average then: $7.68
Drop: 28% below average
Category: Garden
Rank band: Top 50
Sales rank: #8

Why it scored 82. 28% below its own recent average, a discount this deep is rare for this product, and it sells constantly at full price.

Moving fast right now. Price is down 28% on top of that.

This score was assigned on 22 August 2026 and has never been revised. That is deliberate — a scoring system nobody can check afterwards isn't worth a thing. How the Damn Good Score works.

See this product on Amazon — at whatever it costs today, which is not what it cost then.