The Culligan OR-34 O-ring fits the following whole house water filters with a 3/4 inch inlet/outlet Culligan models HF-150A， HF-160 or HF-360A. The O-ring is used to seal the housing canister to the housing cap to prevent leaks. Replace your O-ring every third filter change or when there is damage to prevent leaks.

• Brand Name: Culligan
• Exterior Diameter: 4-3/8 in.
• Material: Rubber
• Product Type: O-Ring
• Number in Package: 2 pk
• Shape: Round
• Wall Thickness: 1/8 in.
• Brand Compatibility: Fits HF-150A， HF-160， HF-360A
• Packaging Type: Bagged