Radion RMS Track 40.5 in — Multi-Light Rail Aluminum Aquariums 38-48 in - EcoTech Marine

The EcoTech Marine Radion RMS Track 40.5 inches is the anodized aluminum horizontal rail that runs across your aquarium between the two RMS arms (Arm Pair). It is part "B" of the RMS Multi-Light modular system — the rail onto which the Slide mounts glide to precisely position your Radion lights. This 40.5-inch (103 cm) rail is suitable for aquariums from 38.5 to 48.5 inches in length — the most popular size for 4-foot reef tanks.

Track Length Guide — Which Track for Your Aquarium?

RMS arms extend 3 to 4 inches beyond each side of the aquarium. The track should be chosen based on the total length of your aquarium. Here's the matching guide:

• 20.5 in (52 cm) Track: 18.5 to 28.5 in aquariums
• 30.5 in (77 cm) Track: 28.5 to 38.5 in aquariums
• 40.5 in (103 cm) Track: 38.5 to 48.5 in aquariums — this product
• 50.5 in (128 cm) Track: 48.5 to 58.5 in aquariums
• 60.5 in (154 cm) Track: 58.5 to 68.5 in aquariums
• 70.5 in (179 cm) Track: 68.5 to 78.5 in aquariums

The track is adjustable front to back on the arms. Even if your aquarium is not a standard length, choose the closest track — the system adjusts.

Features

• Length: 40.5 in (103 cm)
• Recommended aquariums: 38.5 to 48.5 in length (includes standard 4-foot aquariums)
• Material: Black anodized aluminum
• Cable management: Integrated grooves to conceal wires
• Compatible: All Radion XR15 and XR30 (G3 to G6) via corresponding Slides
• Mixed XR15/XR30: The same track can accommodate XR15 and XR30 Slides together

Typical setup for a 4-foot aquarium

A 48-inch reef aquarium with SPS typically uses two Radion XR30s side by side for optimal PAR coverage. The complete setup requires: 1 pair of RMS arms (Arm Pair), 1 RMS 40.5-inch track (this product), and 2 XR30 Slides. For a mixed reef with less demanding corals, two Radion XR15s on the same track also provide excellent coverage.

Parts required for a complete Multi-Light system

• A — RMS Arms (Arm Pair): Pair of vertical supports on the edges of the aquarium — sold separately
• B — RMS Track (this product): Horizontal bar between the arms
• C — RMS Slides: One sliding mount per Radion fixture (XR15 or XR30) — sold separately

Alternative: the track can also be suspended from the ceiling with the RMS Hanging Kit (XR717) instead of the arms.

Why choose ReefSolution

Authorized EcoTech Marine dealer in Canada. All track lengths available: 20.5 / 30.5 / 40.5 / 50.5 / 60.5 / 70.5 inches. Complete your system with the EcoTech Marine Radion RMS Arm Pair — Support arm pair, the RMS Slides XR15 or XR30 — Sliding mounts per fixture, the RMS Hanging Kit XR717 — Ceiling suspension kit for the track. Delivery across Canada.

Frequently Asked Questions

Is the 40.5-inch track suitable for a Red Sea Reefer 350 or a 48-inch aquarium?

Yes. The 40.5-inch track is designed for aquariums from 38.5 to 48.5 inches in length. It is the standard choice for 4-foot reef aquariums including the Red Sea Reefer 350/425 and most 75, 90, and 120-gallon aquariums.

How many Radions can I mount on a 40.5-inch track?

Two Radion XR30s fit comfortably side by side on a 40.5-inch track. You can also mount three Radion XR15s or a combination of XR15s and XR30s on the same track using the corresponding Slides.

Is the RMS track the same for XR15 and XR30?

Yes. The track is universal — it accepts XR15 and XR30 Slides on the same track. The only difference is in the Slide model used. You can even mix XR15s and XR30s on a single track.