Review Methodology

• We evaluate categories of pumps by GPH band, head height capability, wattage, fish/koi suitability, and budget tier — not by invented test data.
• Recommendations are framed as buying lenses: what to compare and what to confirm against the manufacturer’s pump curve.
• When we link to Amazon, we surface the search keyword you would use rather than locking you to a single SKU that may go out of stock.