The OPUS foamer has no metal parts, and all its plastic parts are 100% recyclable.  This makes it an environmentally friendly foamer as it can be fully recycled.  It is a precompression foamer, which means it discharges fluids more positively, more consistently, and with much less "nozzle dribble".  Since it contains no metal parts, the OPUS foamer is suitable for use with a wider range of surfactants than foamers that rely on metal parts. Pre-compression technology means that once this sprayer is primed, you never had to prime it again. This foamer produces richer, lusher, premium foam than normal foamers by creating an optimal blend of small and large bubbles.