Harmsco Calypso Blue Cartridges for Big Blue Water Filter Housings Features: FIVE NOMINAL MICRON RATINGS: • 0.35, 1, 5, 20 and 50 • Polyester Plus AVAILABLE IN TWO LENGTHS: • 9 3/4“ Calypso Blue for 10” filter housing • 20” Calypso Blue for 20” filter housing PLUS! CALYPSO BLUE 20” ELIMINATES THE NEED FOR TWO CARTRIDGES AND A COUPLER ON THE BIG BLUE 20” HOUSING! Harmsco Filters are expensive.
Big Brand Water Filter house brand sediment filters are made in USA. Click here to buy.