O-Ring for HW-304B,404B,704B

Product details

O-Ring for HW-304B,404B,704B is a replacement sealing ring designed for Sunsun HW series canister-style filters in the HW-304B, HW-404B, and HW-704B models. O-rings help maintain a proper seal at connection points so filter components stay closed and water flow can remain controlled without unnecessary leaking. This is a practical replacement part when an older seal wears out, hardens, or no longer sits evenly in its groove. Using the correct O-ring size and compatibility with your specific filter model helps support reliable assembly and routine maintenance.

Features:

• Replacement O-ring for Sunsun HW-304B, HW-404B, and HW-704B filter models
• Helps maintain sealing at connection points to support proper filter assembly
• Useful for routine maintenance when an existing ring becomes worn or misshapen
• Designed as a direct sealing component rather than a substitute part
• Supports better day-to-day reliability by reducing the chance of minor seepage during operation
• Part of the “Replacement Parts” category for filter upkeep

Specifications:

• Product name: O-Ring for HW-304B,404B,704B
• Compatible filter models: Sunsun HW-304B, HW-404B, HW-704B
• Type: Sealing ring (O-ring)