Hayward SX240Z1 O-Ring - 60 Duro

What This Part Is Used For
The Hayward SX240Z1 is an O-ring used on compatible Hayward sand filter components. It is listed as 60 duro, which refers to the O-ring hardness. This seal sits at a connection point on the filter assembly to prevent water leaks under pressure.

Why This Part Matters
O-rings flatten and dry out over time, especially after winterizing and repeated openings for service. A compromised seal can cause slow leaks and air intrusion that lead to poor circulation stability. Replacing the correct hardness O-ring helps restore proper sealing without overtightening housings or clamps. This is a common maintenance item during filter cleanings and rebuilds.

Key Features and Specifications

• Manufacturer part number: SX240Z1
• O-ring seal for compatible Hayward sand filter components
• O-ring hardness listed: 60 duro
• Used to prevent leaks at filter joints and connections
• Service replacement part for routine filter maintenance

Installation and Fitment Guidance
Depressurize the filter fully before removing any sealed components. Clean the groove and seating surface so the O-ring sits evenly and does not pinch during reassembly. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward builds a complete residential pool equipment ecosystem including pumps, filters, heaters, automation, cleaners, chlorination products, and service parts. Their sand filters integrate with Hayward valves and circulation systems across many pool pads. Serviceable seals and hardware help extend equipment life and keep maintenance predictable. Hayward replacement parts are widely supported by pool service professionals.

Common Service Context
Techs typically replace O-rings when they see drips at a filter joint after service or when an O-ring looks flattened and brittle during a teardown. It is also common during spring openings when seals shrink and leak under pressure.