SUNSUN HW-603B Canister Filter O-Ring

The SUNSUN HW-603B Canister Filter O-Ring is a durable replacement gasket for the HW-603B and other compatible HW series canister filters. Made from heavy-duty rubber, it ensures a secure, watertight seal between the filter head and canister body, preventing leaks and maintaining optimal filter performance. Easy to install and maintain, it’s an essential part for keeping your Sunsun canister filter running efficiently.

Quick Factors 

• Type: Replacement O-Ring / gasket
• Material: Heavy-duty rubber
• Compatibility:
• HW-603B
• HW-302
• HW-303A / HW-303B
• HW-304A / HW-304B
• Purpose: Prevents leaks, ensures watertight seal
• Maintenance: Inspect regularly; replace if worn or damaged
• Installation: Remove old gasket and slide new O-ring into place
• Ideal For: Ensuring proper filter performance and leak-free operation