
IceCap 4K Gyre Flow Pump
IC-G4K
The IceCap 4K Gyre Flow Pump delivers up to 4,000 GPH of crossflow water movement using Maxspect-licensed gyre technology to eliminate dead spots. It mounts near the water surface and...
Or build it into a bundle — save up to 6% ↓What it is, and who it is for.

The IceCap 4K Gyre Flow Pump delivers up to 4,000 GPH of crossflow water movement using Maxspect-licensed gyre technology to eliminate dead spots. It mounts near the water surface and includes a controller with five flow modes (Pulsing, Constant, Stream, Random, Cycle) and two propeller sets, and is Direct Drive compatible with HYDROS WaveEngine controllers. Rated for aquariums from 25 to 150+ gallons.
Build around the IceCap 4K Gyre Flow Pump.
It's already in your system below. Add the flow, filtration and dosing around it and the discount starts working — tiers climb as the build grows, and the reef meter fills with it.
Pick the right one, not the biggest one
The honest line-up from flow & circulation. Most buyers reading this page should buy the middle column.
Asked before checkout
The questions our support inbox actually gets.
Does it ship quickly?+
Orders placed before 2 PM ET on a business day leave the same day. Tracking is emailed the moment the label prints.
What if it's the wrong fit for my tank?+
Return it. 30 days, no restocking fee, refund to the original payment method. Better: tell us your tank first and we'll spec the system for free — half of all returns are sizing problems.
Who handles the warranty?+
We do. Everything carries the manufacturer's warranty and we run the claim for you — one email to us instead of a ticket queue.
How does the bundle discount work?+
Add items in the bundle builder: 2+ items saves 5%, 3+ saves 8%, 4+ saves 12%, and 5+ saves 15% off the whole system, applied at checkout.

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