Hayward SX200Z7 O-Ring

What This Part Is Used For
The Hayward SX200Z7 is an O-ring used on compatible Hayward sand filter drain assemblies. It seals a drain connection point so the filter does not leak during normal operation. This O-ring sits at the drain fitting area near the base of the filter tank.

Why This Part Matters
A flattened or nicked drain O-ring is a common reason a filter starts dripping after being drained for winterizing. If the O-ring does not seal, water loss can be steady and hard to ignore at the equipment pad. Replacing the correct O-ring restores sealing without forcing the drain cap too tight. It also helps keep draining and refilling clean during service.

Key Features and Specifications

• Manufacturer part number: SX200Z7
• O-ring for compatible Hayward sand filter drain assemblies
• Seals the drain fitting connection near the base of the filter
• Used to correct leaks at the drain port
• Common service replacement during winterizing and reopenings

Installation and Fitment Guidance
Relieve all filter pressure and drain water to a safe level before opening the drain assembly. Clean the groove and seat the O-ring evenly so it does not pinch during reassembly. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward builds a full residential pool equipment ecosystem including pumps, filters, heaters, automation, cleaners, chlorination systems, and service parts. Their sand filters are widely installed and supported with serviceable seals and drain components to extend equipment life. This compatibility helps technicians resolve leaks quickly with the correct replacement part. Hayward replacement parts are widely supported across the pool industry.

Common Service Context
Techs typically replace drain O-rings when the filter begins dripping at the drain after a drain down or when the cap gasket has been replaced but the leak persists. It is often identified by water trails at the bottom of the filter body during operation.