Natural Chemistry 1L Pool Magic Spring & Fall | 13722NCM Hayward Diatomaceous Earth Filters This filter has 2-1/2" internal

This filter has 2-1/2" internal piping

Always check and replace the O-ring (if needed) when installing this plate—an imperfect O-ring defeats the benefits of a secure seal

Compatibility: Designed for the Hayward DE2420 filter model

Union Design: Features a union style connection that allows easy disconnection and reassembly

Natural Chemistry 1L Pool Magic Spring & Fall | 13722NCM Hayward Diatomaceous Earth Filters This filter has 2-1/2" internalNatural Chemistry Pool Magic Spring & Fall 1 L Quick acting enzyme treatment designed for cold water to prevent waterline rings and streamline pool opening and closing. Features SMARTZyme enzyme formula targets non living organic build upeven in low temperatures Prevents scum lines and preserves pool liner and finish integrity Compatible with all sanitizers, filter types, and pool surfaces Reduces need for scrubbing and eliminates acid washing in