Recently there's been interest in these silencers in the Show off and Discuss your Reefer thread, link here: https://www.reef2reef.com/threads/show-off-and-discuss-your-red-sea-reefer-series.219309/page-264 as well as a thread in Elite Aquatics R2R forum for standard non-reefer sock silencers. Here is a link to the Elite Aquatics, an acrylic fabricator, thread: https://www.reef2reef.com/threads/filter-sock-silencers.281114/page-4 Broadfield that started the reefer show and discuss thread is testing silencer designs for Elite Aquatics but these are for standard socks. What some of us could do here is get a bunch of reefer owners with stock sumps to form a group buy. In this way an acrylic fabricator would be more enticed to make a template for enough interest in this en-devour. If each of us that's interested in the silencers would post here and say so, and also email their favorite acrylic fabricator as well to tell them of this group buy and to give them the link to this thread. We would also want to decide if we want silencers to fit in the sock sliders without the sock being there or the silencers to go on top of the Red Sea Socks. I prefer silencer with no sock to go in the slider tray.