A worn pinwheel pump on an aging skimmer doesn't always mean replacing the whole unit — the VarioS-S skimmer pump series is built as a direct OEM replacement for compatible Reef Octopus skimmer bodies. VarioS-S comes in three sizes matched to different skimmer platforms.
Why Replace the Pump, Not the Skimmer
A skimmer's reaction chamber and body typically outlast its pump, which sees continuous wear from constant operation. Swapping in a VarioS-S replacement pump restores performance, and in some cases adds DC variable-speed control to a skimmer that didn't originally have it.
Choosing a Size
- VarioS 2S — the pinwheel skimmer-pump version of the VarioS 2 platform, built for direct replacement on compatible skimmers.
- VarioS 4S — the pinwheel skimmer-pump version of the VarioS 4 platform.
- VarioS 6S — the pinwheel skimmer-pump version of the VarioS 6 platform, built as an OEM replacement for larger skimmers.
Before You Order
- Confirm your skimmer's original pump platform to match the correct VarioS-S size — check your skimmer's model and pump specs first.
- Check mounting compatibility, since pump swaps depend on matching mount and plumbing connections.
- Consider it for older fixed-speed skimmers looking to gain variable-speed control on an otherwise sound reaction chamber.
Reef Octopus VarioS-S Skimmer Pumps are available at Marine Concept Supply across all sizes — order online or pick up at our shop in Wheeling, IL. Shop VarioS 2S, VarioS 4S, or VarioS 6S, and browse more aquarium pumps.

