Astral Pool Auto Feeder Inline Union O-Ring (4401120102) astral making them important to the

making them important to the overall hydraulic performance of the pump

Supports efficient circulation

Helps refresh the visible control trim area

Balboa on and off switch control with ISC control box

Astral Pool Auto Feeder Inline Union O-Ring (4401120102) astral making them important to theThe 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.