Darlly Cartridge [120 sq ft, 3" OD Top x 3" OD Bottom x 9-1/4" dia x 19-5/8" L] (91201) hammerhead This replacement is especially useful

This replacement is especially useful when the original upper pipe has cracked

This type of tool is especially useful when technicians regularly work on spa jet wall fittings and need reliable fitment-specific engagement

When multiple replacement cartridges are needed for planned service or stocked maintenance

This replacement is especially useful when the original ring is distorted

Filter bag set for compatible Maytronics Dolphin DLX4

Darlly Cartridge [120 sq ft, 3" OD Top x 3" OD Bottom x 9-1/4" dia x 19-5/8" L] (91201) hammerhead This replacement is especially usefulThe Darlly 91201 filter cartridge is designed for compatible filtration applications and offers 120 square feet of filtration area with 3 inch top and bottom openings, 9 1 4 inch diameter, and 19 5 8 inch length. A cartridge like this is useful because it restores filter capacity while preserving the original dimensional profile required by the filter system. Higher square footage cartridges are practical replacements when the system depends on a