End Caps, or C-Channel

End Caps or C-Channels are for cutting and capping finished filters to make custom sizes. Our .24 paperboard End Caps are specially made for capping your custom-sized frames for a clean and sleek finish.

Simply cut one side of your AC filter to the size you need and then cut the End Cap to that exact size. Finally, attach the End Cap to the filter, and voila, a perfectly made custom-sized filter in 3 simple steps. Our Caps come in 1/2 inch, 1 inch, 2 inches, 4 inches, and 6 inches wide.

Ribs or Brace Strips

Ribs or Brace Strips are for connecting two filters together. Sometimes you need a custom size and if you can’t cut down a larger filteryou can connect two filters together. These Ribs or Brace Strips come in 1/2 inch, 1.5 inch, 2 inches, 4 inches, and 6 inches wide.


Model #SizeActual SizePrice
EndCap.5End Cap 1/2″.5 x 39″$0.15
EndCap1End Cap 1″.75 x 39″$0.18
EndCap2End Cap 2″1.75 x 39″$0.24
EndCap4End Cap 4″3.75 x 39″$0.37
EndCap6End Cap 6″5.75 x 39″$0.47
Ribs 1.5″1.5 x 39″1.5 x 39″$0.11