Ecotech Multi Light RMS - Xr15 G5 Slide Mount (also fits G4)

Multi Light RMS mount Flexible Design to Fit Your Needs Because the multi-light RMS is a modular system, choose the components that fit your needs. To build a mount you will need a set of arms, the right rail for your tank and the number and model of light mounts that fit your setup. Its as simple as A,B and C. Rails In All Lengths Tanks come in a lot of shapes and sizes. To accommodate the vast majority of commercially available and custom aquariums the RMS multi-light rails start at 20.5 inches and increase in 10 inch increments to 90.5 inch. The multi-light RMS allows for adjustment of the rail with respect to the arms meaning that even if your tank is not a common length there is a rail length that will work for you.