Hayward VL Series O-Ring (VLX4004A) switches and this Jacuzzi Sandstorm TM31

and this Jacuzzi Sandstorm TM31 Tank Base is designed for compatible applications where the original base has cracked

Supports cleaner and more dependable DE filter maintenance

more reliable repair

and 207A heater applications where the supported thermal-regulating assembly needs replacement

Helps restore maintained-state switching behavior

Hayward VL Series O-Ring (VLX4004A) switches and this Jacuzzi Sandstorm TM31The Hayward O ring is designed for compatible VL Series applications where a key sealing point needs dependable replacement. An O ring like this is useful because it helps maintain a cleaner seal between joined components, supporting more reliable equipment performance and stronger assembly integrity. This replacement is especially useful when the original O ring is flattened, brittle, cracked, or leaking. Replacing it can help restore the condition