Efficient Protection: The air valve strainer cap replaces damaged or clogged 190106Z screen caps with a high‑ stainless steel mesh that filters out small debris before it enters the valve pipe. This helps protect internal components, maintain clean water and extend the life of your pool filtration system. Compatible Model: This 190106Z air bleeder screen cap replacement is designed to fit 170029, CCP 320, CCP 420, CCP 520, FNSP24, FNSP60 and most FNSP series pool filters. Carefully compare your original part number and model before ordering to a precise, leak‑free and secure fit. Easy to Install: Simply turn off the pool filter pump, release all internal pressure, then disassemble and clean the water pipe before installing the new screen filter cap directly. No special tools are required, but we recommend wearing gloves for safety and a better grip during installation. Package Includes: The set comes with 2 pcs 190106Z screen caps to meet both immediate replacement and backup needs. Each cap features an inner diameter of about 0.8 inch, outer diameter of about 1.2 inch, and height of about 1.5 inch. Please measure your original part carefully to confirm compatibility before purchase. Quality Material: The internal air bleeder screen cap combines a flexible rubber body with a sturdy stainless steel filter for reliable sealing and long‑lasting performance. It is not easy to deform or fall off under normal use, ensuring stable filtration and reduced maintenance for your pool filter., Weight: 0.066248909731 Pounds, Manufacturer: Ehwisbe