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Octo AQ1000s 25mm Output Adapter (CLSC 110int/SRO 1000int)
SKU: ROP-OA-25THK
• Genuine Reef Octopus replacement adapter specifically for the Classic 110-INT and SRO-1000INT models
• 25mm Thick design provides a robust, leak-proof seal for optimized bubble diffusion
• Engineered to match the grey threaded outputs of newer Reef Octopus skimmer modifications
• Durable, saltwater-safe construction ensures long-term performance in high-flow environments
• Ideal For: Classic 110-INT owners; SRO-1000INT owners; replacing cracked or leaking pump adapters
Reef Octopus
Globally trusted for premium protein skimmers and pumps, engineered in-house for unmatched reef filtration performance.
Reef Octopus 25mm Thick Output Adapter (Classic 110-INT & SRO-1000INT)
The Reef Octopus 25mm Thick Output Adapter (SKU: ROP-OA-25THK) is a critical specialized fitting required to connect the Aquatrance 1000s (and HY-1000S) pumps to the internal reactor plumbing of your protein skimmer. Unlike standard adapters, the "Thick" version is designed specifically for the 8-inch and 5-inch body architectures of the Classic 110-INT and the Super Reef Octopus SRO-1000INT. This adapter ensures that all 420 LPH of the pump's air-water mixture is funneled directly into the reaction chamber without internal pressure loss.
Maintaining a perfectly airtight and watertight seal at the pump output is essential for the stability of the foam column. Over time, salt creep or accidental over-tightening during pump maintenance can lead to hairline fractures in the original fitting. If you notice turbulence at the base of the skimmer or a drop in bubble density, a compromised output adapter is often the cause. This genuine Reef Octopus part restores your 110-INT or SRO-1000INT to its original factory performance specifications.
Key Features
• OEM Compatibility: Specifically designed for the Aquatrance 1000s and HY-1000S pump outputs.
• Thick-Wall Design: Extra durability to prevent cracking under the vibration and pressure of continuous operation.
• Precision Fit: Matches the internal threading of the Classic 110-INT and SRO-1000INT skimmer bodies.
• Leak-Proof Connection: Eliminates "bypass" where air escapes into the sump before reaching the skimmer neck.
• Simple Installation: Designed to thread directly onto the pump volute during standard maintenance.
Ideal For
• Classic 110-INT Owners: The standard replacement for the in-sump NWB-110 series.
• SRO-1000INT Owners: Perfectly fits the Super Reef Octopus 1000 internal model.
• Performance Restoration: Fixing skimmers experiencing internal air leaks at the pump junction.
• Maintenance Spares: An essential backup part for systems where reef health depends on consistent skimming.
• SKU: ROP-OA-25THK
• Compatible Pumps: Aquatrance 1000s, HY-1000S
• Compatible Skimmers: Classic 110-INT, SRO-1000INT
• Fitting Size: 25mm Thick • Manufacturer: Reef Octopus
- Turn off the protein skimmer pump and remove the skimmer from the sump.
- Remove the skimmer body from the base or pump mount union.
- Unscrew the old or damaged adapter from the threaded output of the pump.
- Clean the pump threads with a soft brush to remove any calcium deposits.
- Install the new 25mm Thick Output Adapter. Hand-tighten only to avoid cracking the pump volute.
- Reassemble the skimmer and verify a secure fit before returning it to operation.
Pro Tips:
Check the union seal.
The 110-INT and SRO-1000INT often use an O-ring sealed union mount. When replacing the adapter, always inspect the union O-ring for flat spots. A tiny amount of silicone lubricant will help the adapter seat and seal perfectly.
Hand-tighten only. The "Thick" adapter is robust, but the threads on the pump volute are still plastic. Never use tools to tighten this adapter; a firm hand-tighten is all that is required for a watertight seal.
Listen for "whistling." If you hear a subtle whistling or gurgling inside the skimmer body, air may be escaping from the adapter connection. Re-seating the adapter with the correct ROP-OA-25THK part usually resolves these noise and performance issues immediately.