
Forespar - Vented Loops , Part No 903001
$44.95
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Made of black non-corrosive material. Install in inlet and discharge plumbing and position so they remain approximately eight inches above the waterline at any angle of heel or trim. The one-way valve in the vent fitting allows air into the loop when a vacuum is present caaaus by a siphon condition and closes when under pressure. O.D. : 3/4" with Valve
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