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2-Wire DIY
Safety-first design — Integrated safety features and compatibility with standard shutoff practices reduce leak risks
This OEM Hayward part is engineered to replace a worn or malfunctioning spinner valve in compatible Hayward cartridge filters and inlet fittings
more efficient pool care tomorrow
the crystals dissolve evenly for consistent performance
Waterway Two Speed 4.5HP 230V Spa Pump 3421821-1A High Performance 25 Inch 2-Wire DIYWaterway Two Speed 4. 5HP 230V Spa Pump 3421821 1A High Performance Intro The Waterway Two Speed Spa Pump, model 3421821 1A, delivers highperformance reliability for residential spas. Operating on 230V, it provides strong jet power when needed and economical circulation at low speed for daily filtration. The rugged 48frame design supports steady performance and quick, straightforward installation in standard spa systems. List of Features Dual speed
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