Secondary XL Filter Housing Replacement O-Ring & Grease

This is a replacement O-Ring & Grease for the Secondary XL Filters (formerly called "Jumbo" filters), which are only used with:

• The Cold Stoic 3.0
• The Aurelius
• Custom Built Tanks with the Jumbo Filter Housing

This is NOT compatible with the standard filter housing. If you are unsure which item you need, please contact support if you have any further questions.