PA-421 Spa Filter Replacement | Hot Tub Filter Cartridge

Keep your hot tub water clean, clear, and properly filtered with the PA-421 Spa Filter Replacement, designed to capture dirt, debris, oils, and contaminants while maintaining optimal water flow and filtration performance.

This high-quality hot tub filter cartridge is ideal for routine maintenance, helping improve water clarity while reducing buildup and overall chemical demand. Whether you're replacing a worn filter or keeping a spare on hand, the PA-421 delivers reliable, consistent performance for healthier, more enjoyable spa use.

Compatibility:
- Compatible with select hot tubs and spas using this size and connection type.
- Please confirm part number and dimensions before purchasing to ensure proper fit.

Specifications:
- Filter Type: Spa / Hot Tub Filter Cartridge
- Part Number: PA-421

Features:
✔️ Improves water clarity and filtration performance
✔️ Captures debris, oils, and contaminants
✔️ Helps reduce chemical usage
✔️ Maintains proper water flow and system efficiency
✔️ Durable construction for long-lasting use

For best results, replace your spa filter:
- Every 12–24 months depending on usage
- When water flow is reduced
- When cleaning no longer restores performance

Keep your hot tub performing at its best with a reliable spa filter replacement, available now at Splash Pool & Spa - proudly serving Peterborough & the Kawarthas with expert advice and fast shipping across Canada.