Premier F6 Ultra-Fine Filter Cartridge Bottom Lid Conversion Kit filter-length_23 5/16 inches The gold tip probes are

The gold tip probes are necessary for salt water pools

Models SD40

NOTE: Duraflex boards

This is a Zodiac R0040400 Bronze Pressure Relief Valve Kit for Cast Iron/Bronze Headers of Legacy LRZE

Premier F6 Ultra-Fine Filter Cartridge Bottom Lid Conversion Kit filter-length_23 5/16 inches The gold tip probes areThis is a Maytronics Ultra Fine Filter Cartridge Bottom Lid Conversion Kit for Dolphin Premier Pool Cleaners. This conversion kit contains: Cartridges, Bottom Lid for Cartridges (9982271), Non Return Flap (9985439), Base for No Return Flap (9985447), Cartridge Holder (9980009), Hook Lock (9985446), Bottom Lid Latch Diagnostic Basic (9982330), Bottom Lid Spring Diagnostic Basic (9982331).