Darlly Cartridge [150 sq ft, 4" OD Top x 4" OD Bottom x 8-15/16" dia x 23-5/16" L] (81502) modular If the existing assembly has

If the existing assembly has been modified over time

An inlet fitting is useful because it helps guide return water into the vessel while preserving the intended fit and appearance at the wall connection point

Useful when replacing a failed or unreliable original pump

Helps restore correct depth and structural support

8 amp pump is needed

Darlly Cartridge [150 sq ft, 4" OD Top x 4" OD Bottom x 8-15/16" dia x 23-5/16" L] (81502) modular If the existing assembly hasThe Darlly 81502 filter cartridge is made for compatible filtration systems requiring 150 square feet of media area in a slightly slimmer 8 15 16 inch diameter profile. With 4 inch top and bottom openings and a length of 23 5 16 inches, it is a strong choice when a system calls for generous filtration capacity without the broader body used by some larger cartridges. Matching cartridge size correctly is one of the most important steps in filter