UNS VCA Flow Kit - Ultum Nature Systems

UNS VCA Flow Kit – Precision Flow Upgrade for Ultum Nature Systems Dual AIO Aquariums

Enhance your aquarium’s performance and circulation with the UNS VCA Flow Kit, designed specifically for Ultum Nature Systems Dual All-in-One Rimless Aquariums (compatible with all Dual AIO models except the Complete 30A AIO). This precision flow kit makes it easy to connect VCA Random Flow Generator® nozzles, allowing you to achieve more natural, dynamic water movement within your setup.

The VCA Random Flow Generator utilizes a patented internal design to create gentle, randomized water flow—without the use of mechanical parts. This ensures quiet operation and minimal maintenance while significantly improving circulation. By preventing dead spots and keeping debris suspended in the water column, this kit enhances filtration efficiency, promotes healthier aquarium ecosystems, and maintains stable, even flow for reef corals, aquatic plants, and invertebrates alike.

Whether you’re running a planted freshwater tank or a nano reef system, the UNS VCA Flow Kit provides a simple yet high-performance upgrade that refines both function and aesthetics.

Key Features

• Compatible Design – Fits all UNS Dual AIO Rimless Aquariums (excluding Complete 30A AIO)

• Natural, Randomized Flow – Patented internal geometry delivers complex, non-repetitive circulation patterns

• Silent & Maintenance-Free – No moving parts to service or replace

• Improved Filtration Efficiency – Keeps debris suspended and boosts skimmer or filter performance

• Safe, Gentle Flow – Ideal for sensitive corals, shrimp, and fine substrates

• Durable Build – Made from PETG and reef-safe TPU thermoplastic polyurethane

Product Specifications

• Dimensions: 3.5 x 1.25 x 1.25" (89 x 32 x 32 mm)

• Recommended Flow Rate: 120–450 GPH (454–1703 LPH)

• Materials: PETG / TPU

Included in Kit

• (1) Flex-Series Random Flow Generator® Nozzle

• (1) 20 mm Outflow Adapter

Optimize flow. Reduce dead zones. Enhance natural movement. The UNS VCA Flow Kit is the perfect complement to your Ultum Nature Systems aquarium—delivering professional-grade circulation that supports vibrant, thriving aquatic life.

UNS VCA Flow Kit – Reef System Edition

Specifically tailored for the UNS Reef System, this version of the VCA Flow Kit brings advanced circulation to your marine or reef setup—especially ideal for corals, invertebrates, and mixed reef displays. 

• Compatibility: UNS Reef System series

• Dimensions (assembled): 5.25 × 1.75 × 1.75" (133 × 45 × 45 mm)

• Recommended flow rate: 500–1,340 GPH (1,893–5,072 LPH)

• Materials: PETG / TPU / Acetal Copolymer

• Kit includes:

  • 2 × Flex-Series Random Flow Generator® nozzles (reef-safe TPU)

  • 2 × two-segment genuine Loc-Line® tubing

  • 2 × 25 mm outflow adapters

Why Choose the Reef System Edition?

• Built for larger or dedicated reef tanks, allowing higher flow for coral health and sediment suspension

• Ideal for reef aquarists and advanced hobbyists seeking premium circulation without mechanical noise or visible plumbing

• Designed for quiet, efficient operation while preserving substrate and coral branches