Darlly Cartridge [150 sq ft, 4" OD Top x 4" OD Bottom x 8-15/16" dia x 23-5/16" L] (81502) modular 7 3/4" High] (R38013B) is

7 3/4" High] (R38013B) is engineered for skimmer parts applications

The Rising Dragon jet internal is designed for compatible 2 inch face directional jet applications where the internal jet component needs replacement

If the existing assembly has been modified over time

Matching the correct black 1-1/2 inch MPT cover helps preserve intended fit and supports cleaner installation results

Darlly Cartridge [150 sq ft, 4" OD Top x 4" OD Bottom x 8-15/16" dia x 23-5/16" L] (81502) modular 7 3/4" High] (R38013B) isThe 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