O-Ring for HW-302,402B,702B

Product details

O-Ring for HW-302,402B,702B is a replacement sealing ring made for Sunsun HW302, HW402B, and HW702B aquarium filter units. In these canister-style filter setups, the O-ring helps create a tight seal between mating parts so water can flow through the filter without escaping from the housing or connections. If an older sealing ring has hardened, flattened, or been damaged, replacing it can help restore a proper fit and reduce the chance of leaks during operation.

Features:

• Designed as a sealing ring for Sunsun HW302, HW402B, and HW702B filters
• Replaces a worn or damaged O-ring to help maintain a tight seal
• Helps reduce the likelihood of water escaping at connection or housing surfaces
• Useful as routine maintenance to keep the filter running as intended
• Simple, practical replacement part when reassembling the filter after cleaning or service

Specifications:

• Compatible models: HW-302, HW-402B, HW-702B
• Product category: Replacement Parts (sealing ring / O-ring)