RedFlex 4in1 300 Sump

Reef Your Way with Flexible Filtration

The RedFlex 4in1 is built for hobbyists who want more control over how their sump is configured. Designed for either saltwater or freshwater systems, it allows you to tailor filtration around your livestock, equipment, and long-term plans. Integrated probe holders, dosing tube mounts with quick-connect fittings, and wire management help keep the sump organized and easy to maintain.

Water enters through dual overflow ports, passes through integrated bubble diffusers, and flows into 4-inch 200-micron filter socks for mechanical filtration. An overflow safety panel provides added protection by allowing water to bypass if the socks become clogged.

After the skimmer chamber, water moves into a dedicated chemical media canal. From there, you can direct water either through the refugium section or straight into the return chamber. The refugium area is blocked off by a removable panel which can be removed to allow the water to enter the return chamber.

The refugium area also includes a built-in frag rack with two positioning options.

Flexible Refugium Chamber

Set this chamber up for a refugium or use the included frag rack to house extra corals without cluttering up your display tank.

Probe & Tube Holder

Integrated holders keep probes and dosing lines organized and secure.

Cord Management

The power cord management clip in the return section keeps cords tidy and out of the way.

Specifications

• Dimensions: 37" L x 14.5" W x 16" H
• Recommended Aquarium Size: Up to 300 Gallons

What's Included?

RedFlex 4in1 300 Sump

(3x) 200 Micron 4" Filter Socks

(2x) 1" Bulkheads

(2x) 3' Flexible Hoses

Heater Holder

Probe Holder

(4x) Colored Dosing Tubes with Quick Connect Fittings

Frag Rack

Foam Block

Return Pump Hose Bracket