Octo Classic 110S Collection Cup O-ring
SKU: ROP-CC-ORING110S
• Genuine Reef Octopus replacement O-ring designed specifically for the Classic 110-S (SSS) model
• Prevents air leaks and messy salt creep from forming at the neck junction
• High-quality, flexible rubber construction resists saltwater degradation and compression set
• Essential component for the quick-release neck mechanism
• Ideal For: Classic 110-S (SSS) owners; leaking skimmer necks; routine maintenance
Reef Octopus
Globally trusted for premium protein skimmers and pumps, engineered in-house for unmatched reef filtration performance.
Reef Octopus Classic 110-S Collection Cup O-Ring
The Reef Octopus Classic 110-S Collection Cup O-Ring (SKU: ROP-CC-ORING110S) is a precision-fit sealing component essential for the proper operation of your protein skimmer. Located at the junction where the collection cup meets the skimmer body, this O-ring creates the airtight environment required to maintain internal pressure. Without a functional seal, air can escape from the neck, causing the foam column to collapse and significantly reducing your skimmer’s organic export efficiency.
This O-ring is specifically sized for the "Super Space Saver" (SSS) version of the Classic 110. Over time, exposure to saltwater and organic waste can cause original O-rings to become brittle, cracked, or permanently compressed. Replacing this part restores the "quick-release" feel of the neck and prevents salt creep from forming on the exterior of your skimmer body. Made from high-grade, durable rubber, this genuine Reef Octopus part ensures your filtration system remains quiet, efficient, and leak-free.
Key Features
• Precision Fit: Specifically engineered for the neck dimensions of the Classic 110-S (CLSC-110SSS).
• Airtight Performance: Seals the reaction chamber to ensure 100% of the air-water mixture is directed through the cup.
• Saltwater Resistant: High-quality material designed for long-term submersion in marine environments.
• Prevents Salt Creep: Eliminates the slow weeping of skimmate that leads to unsightly salt buildup.
• OEM Quality: Genuine Reef Octopus part ensures factory-spec performance and durability.
Ideal For
• Classic 110-S Owners: Directly compatible with the space-saving internal 110 model.
• Leaking Skimmer Necks: Fixing units where skimmate or air is escaping from the cup junction.
• Annual Maintenance: A low-cost replacement part to keep on hand for yearly skimmer refurbishing.
• Restoring Quick-Release: Returning that smooth, secure feel when attaching or removing the cup.
What’s Included:
• (1) Classic 110-S Collection Cup O-Ring
Specifications:
• SKU: ROP-CC-ORING110S
• Compatible Skimmer: Reef Octopus Classic 110-S (CLSC-110SSS)
• Material: High-grade Nitrile/Rubber
• Color: White/Clear
- Turn off the protein skimmer pump.
- Carefully remove the collection cup by lifting it vertically.
- Locate the old O-ring on the neck of the skimmer body or inside the cup junction.
- Remove the old O-ring and clean the groove with a damp cloth to remove any salt or debris.
- Slide the new O-ring into the groove, ensuring it is not twisted.
- Reinstall the collection cup and restart the pump.
Pro Tips:
Lubricate for Longevity.
Apply a tiny amount of aquarium-safe silicone lubricant to the O-ring before installation. This prevents the rubber from sticking to the acrylic, making the cup much easier to remove for cleaning and extending the life of the seal.
Check for Twisting. When installing the O-ring, run your finger around the entire circumference. If the O-ring is twisted in the groove, it will not create a perfect seal and may cause the collection cup to sit crookedly.
Don't Settle for Salt Creep. If you see white, crusty buildup forming where the cup meets the body, your O-ring is failing. Replacing this $11 part immediately can save you from a messy cleanup and potential skimmer overflows in the future.