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The legacy cross-reference S18600 may appear on older equipment labels — both numbers refer to this same kit
This valve gives you manual control over water flow direction at a plumbing junction
and matching the 22-5/8 in
Replacing a single failed safety component is the right moment to assess the surrounding assembly
Pentair Vent Fitting, Grey | IntellipH Container | 521509 CCXAG The legacy cross-reference S18600 mayThe Pentair Vent Fitting (521509) is the OEM replacement grey vent fitting for the Pentair IntellipH Chemical Container, designed to maintain proper pressure equalization within the chemical feed system. The vent fitting allows the IntellipH chemical container to breathe as chemical solution is dispensed, preventing vacuum lock that would otherwise interrupt consistent chemical delivery. Replacing a cracked, clogged, or missing vent fitting restores
