Pentair Clean & Clear Plus Cartridge Filter 420 | EC‑160301 Standard 2.5" the internal parts would be

the internal parts would be exposed to the outer elements of the pool water along with objects that could potentially disrupt the parts that move or provide the cleaner with the capabilities to clean the surfaces of your pool

More importantly

Dual‑nozzle laminar‑flow path (3/8″ inner & 7/16″ outer) increases debris‑sweeping power

Helps keep debris out of the pump and plumbing

Swap a cracked body or worn pad in one step

Pentair Clean & Clear Plus Cartridge Filter 420 | EC‑160301 Standard 2.5" the internal parts would bePentair Clean & Clear Plus Cartridge Filter 420 EC160301 Largecapacity cartridge pool filter by Pentair (SKU EC160301) with 420 sq ft media area, up to 150 GPM flow, durable tank, and easy cleanout. Features 420 sq ft effective filtration area for increased dirt capacity. Rated for up to 150 GPM flow suitable for larger residential systems. Injectionmoulded, fiberglassreinforced polypropylene tank resists corrosion and weathering. Four large