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Octo CLSC-110EXT Venturi (AQ1000S)
SKU: ROP-AQ1000-XV
- 100% Genuine OEM Factory Part: Manufactured directly by Reef Octopus as an exact structural match to drop right onto your recirculating pump line.
- Hydrodynamically Focused Constriction: Uses a fine internal constriction channel to exploit the Venturi effect, aggressively drawing up to 420 L/H of ambient air.
- High-Impact Saltwater-Safe ABS: Molded from a dense, non-leaching polymer matrix that resists brittle stress fractures and salt creep degradation.
- Integrated Airline Barbed Nipple: Features a molded vertical air intake nipple tailored to grab standard 1/4-inch flexible silicone skimmer airline tubes.
- Explicit AQ1000S Motor Tracking: Calibrated specifically to sit flush over the suction eyelet of the Aquatrance 1000S recirculation pump engine.
Reef Octopus
Globally trusted for premium protein skimmers and pumps, engineered in-house for unmatched reef filtration performance.
Reef Octopus Aquatrance 1000S Venturi Adapter for Classic 110EXT (SKU: ROP-AQ1000-V)
The Reef Octopus Aquatrance 1000S Replacement Venturi Adapter (SKU: ROP-AQ1000-V) is an authentic, internal OEM air-induction component distributed by CoralVue to protect high-density bubble columns inside recirculating external protein skimmers. In external recirculating (EXT) configurations, the pump operates entirely outside the primary skimmer column, drawing water from the skimmer body and blasting it back inside. Because this process happens out of the water, the suction-side venturi must pull a completely airtight and watertight seal against the pump casing. Hairline fractures from dropping the part during cleaning, or brittle stress fractures from heavy calcium scaling, will cause internal suction drops or micro-leaks, dropping your total air volume significantly.
Molded from high-grade, marine-strength injection polymers, the ROP-AQ1000-V is engineered to slip directly onto the intake faceplate of the Aquatrance 1000S (9W) skimmer pump. This venturi acts as the direct factory replacement for the Classic 110EXT Recirculating External Skimmer, ensuring that air entering through the silencer line is sliced efficiently by the needlewheel matrix. By maintaining an uncompromised vacuum lock over your intake lines, this replacement part forces the pump to continuously generate billions of tiny micro-bubbles, lifting organic waste cleanly out of your water column.
Key Features
Restores Peak Air-Injection Potentials: Corrects degraded vacuum dynamics caused by cracked legacy fittings, lifting air intake volumes back up to 420 L/H.
Tool-Free Slide Fitting Updates: Exact friction-slip configurations push directly into position over the factory volute cover, skipping messy adhesives or tools.
100% Reef-Safe Polymer Formulation: Molded out of inert structural plastics that will never leach manufacturing stabilizers or chemical toxins into fragile coral systems.
(Note: This retail SKU contains (1) individual Aquatrance 1000S Venturi Adapter nozzle. Silicone air lines, air silencers, recirculating union gaskets, and replacement pump bodies are sold under separate product categories).
Reef Octopus Aquatrance Venturi Adaptation Matrix
| Component Classification Scale | Material SKU Identifier | Onboard Base Connection Track | Primary Target Skimmer Platform Match |
|---|---|---|---|
| Aquatrance Venturi AQ1000S | ROP-AQ1000-V | Standard Slip Profile | Classic 110-INT, Classic 110EXT Recirculating |
| Aquatrance Venturi AQ110S | ROP-AQ110S-V | Low-Profile SSS Slide | Classic 110-SSS Space Saver Lines |
| Aquatrance Venturi AQ2000S | ROP-AQ2000-V | Mid-Sized Friction Slip | Classic 150-INT, Classic 160-INT Sump Lines |
| Aquatrance Venturi AQ3000S | ROP-AQ3000-V | Oversized High-Flow Collar | Classic 200-INT, Classic 225-INT Sump Lines |
What’s Included:
(1) Reef Octopus Aquatrance Replacement 1000S Venturi Adapter Nozzle for Classic 110EXT
Technical Specs:
Official Manufacturing Title: Reef Octopus Aquatrance Venturi for AQ1000S (CLSC-110INT/EXT)
SKU / Factory Part Identifier: ROP-AQ1000-V
Air Induction Connection Interface: Standard 1/4-Inch Integrated Slotted Barbed Nipple
Primary Structural Material Base: Saltwater-Safe Hardened High-Impact Injection ABS Plastic
Primary System Pathway Track: Ambient Air-Silencer Feed to Pinwheel Intake Induction
Chassis Platform Compatibility: Form-Fitted for Reef Octopus Classic 110EXT External and Classic 110-INT In-Sump Skimmers
- Unplug your Reef Octopus Classic 110EXT external recirculating skimmer pump from its electrical wall outlet. Close your system feed lines and move the external Aquatrance pump over to a clear workspace.
- Pull the soft flexible silicone airline tubing away from the barbed intake nipple on your old, worn venturi nozzle.
- Slide the old venturi straight out and away from the center suction neck of the front volute pump cover. Pro Tip: If dried salt creep or calcium scaling has locked the pieces together, soak the pump face in warm water and white vinegar for 10 minutes to dissolve the scale before pulling.
- Wipe the internal tracking lines of the pump volute cover with a clean towel to remove any loose debris or organic slime film.
- Push your fresh ROP-AQ1000-V venturi nozzle firmly over the center intake ring of the volute cover until it seats squarely against the shoulder stop.
- Push your silicone airline back onto the barbed vertical nipple, secure your recirculating plumbing unions, mount the pump back onto your external skimmer frame, and restore power.
Pro Tips:
- Always Check Your Specific Skimmer Letter Code Before Ordering. Because Reef Octopus uses several types of 1000S venturi adapters across their modular lines, it is incredibly easy to select the wrong part variant by mistake. This specialized ROP-AQ1000-V Nozzle is tailored with a specific length and thickness for straight, external plumbing paths like those on the Classic 110EXT or Classic 110-INT. If you are servicing an ultra-compact Classic 110-SSS Space Saver model, the pump is turned sideways and requires the shortened ROP-AQ110S-V version instead. Double-checking your skimmer's official label ensures a perfect, leak-free fit.
- Routinely Scrub the Internal Air Nipple to Eliminate Silent Salt Clogging. If you notice your protein skimmer's performance dropping off over time, or if the water level inside the column keeps overflowing inexplicably, the problem is almost always a salt clog inside the venturi rather than a mechanical pump failure. Because the pump aggressively draws in ambient air, saltwater will naturally splash back into the line, drying out and creating a hard column of white calcium or salt creep inside the narrow intake port. This restriction chokes off air draw, causing the pump to pull only water and flood the skimmer cup. Every 4 to 6 weeks, slide a small pipe cleaner or a stiff bristle brush through the air nozzle to keep paths completely clear.
- Never Use Pliers or Hand Tools to Force the Venturi Onto the Volute Ring. Because this genuine OEM part is molded to exceptionally tight tolerances to form a perfect hydraulic vacuum seal, pressing the rigid plastic components together dry can sometimes feel very stiff. Avoid the temptation to grab a pair of household metal pliers to force the pieces together, as this will easily split the ABS plastic collar. Instead, wipe a tiny drop of fresh RO water inside the receiving sleeve of the new venturi. This acts as a safe, clean lubricant, allowing the adapter to slide into place smoothly without over-stressing the plastic structure.