Answer
Mar 12, 2025 - 08:24 AM
The Flow Switch Housing for a CircuPool RJ PLUS or Universal Series Salt Chlorinator measures a nominal 4" of which about 1 1/4" on each end is a slip joint that fits over the pipe end when installed. The actual cut, or gap, between the two pipe ends does measure at 1 1/4" giving you - when added to the two slip joints - roughly the 4" nominal measurement of the housing. Note, the manual indicates that the space between the pipe ends where the flow switch goes, is "at least 1 1/4" inches.
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