Darlly Cartridge [100 sq ft, 2-3/8" OD Top x 2-3/8" OD Bottom x 6-9/16" dia x 17-13/16" L] (61001) presairtrol Using the correct model-specific adapter

Using the correct model-specific adapter helps preserve the original design logic of the assembly and keeps the repair cleaner

The Waterway 550-9007 weir door assembly is designed for compatible front access skimmer applications and comes in gray

and PA50SV

For spa maintenance and air system restoration

A part like this is useful because it restores a more specialized and varied user-facing jet pattern while keeping the visible trim coordinated with a neutral finish

Darlly Cartridge [100 sq ft, 2-3/8" OD Top x 2-3/8" OD Bottom x 6-9/16" dia x 17-13/16" L] (61001) presairtrol Using the correct model-specific adapterThe Darlly 61001 filter cartridge is designed for compatible filtration applications and offers 100 square feet of filtration area with 2 3 8 inch top and bottom openings, 6 9 16 inch diameter, and 17 13 16 inch length. A cartridge like this is useful because it restores filtration performance while matching the original compact dimensional profile required by the housing. Replacement cartridges should be matched by both square footage and