Pentair Mechanical Seal Service Package, Type 6, 5/8" | 354545S Fire Tower small leaks start showing up

small leaks start showing up after service or winterizing

Hayward parts ensure compatibility across the system

Drain covers are commonly replaced during resurfacing

Confirm the existing lighting system uses a metal halide illuminator before replacement

Manufacturer part number SP071621

Pentair Mechanical Seal Service Package, Type 6, 5/8" | 354545S Fire Tower small leaks start showing upWhat This Part Is Used For Pentair 354545S Mechanical Seal Service Package Type 6 5 8in is a replacement mechanical seal kit used in compatible Pentair pump assemblies. It seals the rotating shaft to prevent water from reaching the motor. Why This Part Matters When a mechanical seal fails, water leakage can quickly damage motor bearings. Replacing the seal restores proper sealing at the shaft and helps prevent costly motor replacement. It is a