Sump Rim Probe And Tube Rack
A clamp-on rack that hangs over an aquarium sump wall or baffle up to 20 mm thick and organises two 10–13 mm probe bodies (pH/ORP/temperature) in snap-in C-clips plus two 4 mm OD dosing lines in 4.3 mm vertical guides, all held over the water instead of dangling. 48 mm saddle spans the rim, 58 mm long, 32 mm legs; an M4 heat-set insert (5.5 mm bore) takes a 25–30 mm M4 thumbscrew that clamps it to any glass thickness. Print in PETG for wet service.
organizer aquarium reef probe-holder