Replacement SPECTRUM Pleated Polyester BB 20" Single Sediment 5µm Filter 4.5" x 20"

20" x 4.5" Replacement filter cartridges only
Contains 1 filter cartridge:
First Cartridge (1): SPECTRUM Pleat² polyester filter 5µm 20'' cartridge for large diameter housings

PLEASE NOTE THIS IS THE FILTER REPLACEMENT FOR FILTER 1 (of a quad system). WE RECOMMEND YOU CHANGE THIS FILTER EVERY 3-6 MONTHS DEPENDING ON USAGE OR PRESSURE GAUGE INDICATION.