Pentair Quad/EasyClean/CNC Plus Air Bleed Screen Cap (190106Z) danner and this Pasco Specialty version

and this Pasco Specialty version is sized for 1 inch applications using the 3241 reference

Useful when the original disc is worn or damaged

or pump rebuild work

or related service part from Pentair/Sta-Rite for compatible pool

Helps restore cleaner movement and wheel stability

Pentair Quad/EasyClean/CNC Plus Air Bleed Screen Cap (190106Z) danner and this Pasco Specialty versionThis air bleed screen cap is designed for compatible Pentair Quad, EasyClean, and CNC Plus filter systems. The air bleed screen helps manage trapped air and internal flow while preventing debris from entering areas where it can interfere with proper operation. Replacing a damaged, clogged, or missing screen cap can help restore normal air bleed function and support more consistent filtration performance. It is a small but meaningful service part