Insert the filter retaining ring open side into the Emitter mounting area of the cube. Note
that the cube threads are at an angle. This will require careful installation of the retaining
ring to avoid cross threading.
Using the Spanner Wrench, carefully turn the ring while observing its position in the
threads. Keep the ring level across the threaded area while allowing the ring to tilt as it
threads inward. If the ring will not turn, it is not threaded properly – slowly turn the ring
out and try again. Do not force thread the ring as it will turn freely if oriented correctly.
Tighten the ring snug against the Emitter filter. Once snug, tighten another quarter turn to
secure. Note the angle of the retaining ring threads in the photo below.
