Astral Pool Aster Sand Filter 1-1/2" Diffuser (645) spacovers Replacing it can help return

Replacing it can help return the housing to a tighter and more dependable condition while preserving the larger serviceable parts

is reading inaccurately

Supports smoother cleaner operation and wear control

Matching the correct tailpiece helps reduce plumbing compromise and supports a cleaner final repair

and this Maytronics Dolphin Deluxe Series version uses the 99919117 reference

Astral Pool Aster Sand Filter 1-1/2" Diffuser (645) spacovers Replacing it can help returnThe Astral Pool Aster sand filter diffuser is designed for compatible 1 1 2 inch sand filter applications where incoming water needs to be dispersed properly inside the tank. A diffuser is useful because it helps guide the water into the filter body in a more controlled way, supporting better internal flow management and more dependable filtration performance. This replacement is especially useful when the original diffuser is cracked, damaged, or no