4" Collection cup for Protein Skimmer, DIY, FitsCPR SR4, CY192, AFPRO, MRT
One collection cup assembly for 4" Protein Skimmer.
For DIY Project: This will fit any open top 3.75" ID column.
Replacement collection cup for CPR SR4 Protein Skimmer, CY192 Cyclone Biofilter, Marine Tower (MRT) and Aquafuge Pro series.
It includes lid and drain fitting elbow.