Astral Pool Auto Feeder Inline Union O-Ring (4401120102) astral Supports efficient circulation

Supports efficient circulation

and this Polaris and Zodiac version is a black assembly designed for 380 cleaner applications using the 9-100-7007 reference

while the 3/4 inch MPT threaded connection supports the intended plumbing style in supported applications

This replacement is often chosen when the original valve is worn internally

Helps refresh the visible control trim area

Astral Pool Auto Feeder Inline Union O-Ring (4401120102) astral Supports efficient circulationThe Astral Pool auto feeder inline union O ring is designed for compatible feeder plumbing applications where the union connection needs a reliable seal. An O ring like this is useful because it helps keep the inline union leak resistant while preserving the serviceable nature of the connection for future maintenance. This replacement is especially useful when the original O ring is worn, flattened, brittle, or allowing seepage at the feeder union.