Reef Octopus VarioS 4S Controllable DC Pinwheel Skimmer Pump
The Reef Octopus VarioS 4S Skimmer Pump (SKU: OCT-VARIOS4-S) is a premium, variable-speed direct current (DC) pinwheel fractionating pump engineered to deliver silent, ultra-efficient performance for mid-to-large size protein skimmers. Traditional alternating current (AC) legacy skimmer pumps run at a single, rigid speed, forcing hobbyists to rely solely on physical water height adjustments or air valves to tune their skimmer's foam level. The VarioS 4S revolutionizes this process by utilizing an intelligent 24V brushless motor core. Pushing up to 422 GPH of water while pulling an impressive 1500 L/H of air, this highly responsive pump allows you to electronically fine-tune your skimmer's internal water line and foam density with the press of a button.
The defining operational distinction of the VarioS 4S is its specialized Integrated Safety & Automation Controller. Outfitted with an external control pad, the pump allows users to step through 5 distinct speed modes and cycle through dual independent feed/pause delays (15 or 60 minutes) to keep the skimmer offline during livestock feeding or water changes. For ironclad system safety, Reef Octopus bundles an electronic float switch sensor that plugs straight into the controller housing. By mounting this sensor inside your skimmer's collection cup or waste collector, the pump will instantly shut down the moment the cup fills with liquid skim, mitigating the messy threat of a collection cup overflow. Hand-machined with a high-purity ceramic shaft and matching bearing to optimize long-term friction resistance, the VarioS 4S is the definitive upgrade for low-maintenance, crystal-clear reef aquariums.
Key Features
Intelligent Central Integration: The onboard 0-10V connection turns the controller into a clean translation interface, letting centralized apps dictate variable speed profiles or custom feed-pause delays.
Rotatable Directional Volute: Effortlessly accommodates tight skimmer bodies or narrow sump layouts by altering the physical output path to point up, down, or sideways.
Premium Venturi Assembly: Ships complete with a high-efficiency venturi air intake throat and silicone airline tubing to maximize smooth micro-bubble production.
Thermal Protection Failsafes: Built-in internal cooling channels maintain continuous temperature normalization across the rotor to guard against overheating.
Memory Function Restoration: Retains its exact pre-configured speed stage and operational logic even if an unexpected residential power outage cuts the main grid line.
Ideal Replacement/Upgrade Compatibility
Classic Series: Classic 200INT, XS200
Diablo Series: Diablo DCS 170INT, DCS 200INT, RDCS 2000EXT*, XS200
Super Reef Octopus (SRO) Series: SRO-2000EXT, SRO-3000INT, SRO-3000EXT*
XP Series: XP2000EXT, XP3000EXT, RDCS 200EXT
Regal: 200INT, 200SSS
Elite: 200INT, 200SSS, POV-DC2*
(Note: Some legacy or specific skimmer models may require an additional conversion adapter part or custom PVC volute to link the pump output to the skimmer body plumbing, sold separately)
System Capacity Handling
Heavy Demand (Packed SPS Reef): 80 – 200 Gallons
Medium Demand (Mixed Reef): 250 – 350 Gallons
Light Demand (Fish-Only Display): 400 – 500+ Gallons
