Best deal: $17.97 per gallon (67.3% below the median) — Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
Price range: $17.97 – $575.84 per gallon across 49 offers. Median sits at $54.95.
Top brands showing: Liquid Rubber, Rust, Thompson Water Seal.
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