Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic A pressure gauge like this

A pressure gauge like this is valuable because it gives the user a clear way to monitor system pressure

and EcoM3 V pump applications

When a connection point begins to fail

Units like this are useful because they help manage system behavior tied to heat-related functions and can play an important role in overall bath equipment performance

this Waterway internal is a practical replacement when a white twin roto insert with scalloped styling is needed

Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic A pressure gauge like thisThe Blue White bobbin flow indicator is designed for compatible chemical feed applications where visible confirmation of flow is needed. A flow indicator is useful because it helps the operator see whether fluid is moving through the line, supporting troubleshooting and more dependable feed system monitoring. This replacement is especially useful when the original indicator is damaged, leaking, cloudy, or no longer showing flow clearly. Matching the