Hayward/AquaCal FDXLWPS1930 Pressure Switch For Universal H-Series Heater – T90 Heat Pump – 610377074230

If your pool heater's acting up, this little pressure switch might be the fix.

It's a Hayward FDXLWPS1930, designed for Universal H-Series heaters, and it also fits the AquaCal Tropical T90 heat pump.

It's brand new, in the original packaging, and ready to install.

The part comes from AquaCal but works with Hayward systems—typical crossover in the pool world.

Dimensions are roughly 6.6 x 2.6 x 1.7 inches.

If your heater isn't firing or you're getting pressure-related error codes, swapping this switch is a good place to start.

Easy replacement, gets your pool warm again.