Important O-Ring Tips: Inspect O-Ring during each filter change for damage, cracks, splits Cover O-Ring with silicon lubricant during each filter change Do not overtighten filter sump (do not use filter wrench to tighten sump - only use wrench to loosen sump) Repace O-Ring every two filter changes This is a sale for one(1) O-ring, LiquaGen does not distribute or sell products to any 3rd party sellers on Amazon. This product is sold exclusively on LiquGen's Amazon store. Other companies selling this product are counterfeits. Please make sure to purchase a genuine LiquaGen product for proper authenticity and warranty.
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