LTWHOME Compatiable Foam and Carbon Rings Fit for Biorb Filter Set/Service Kit (Pack of 16) Packing include: 1pc polyester foam

Packing include: 1pc polyester foam

has an off centre hole cut out (3

Designed to fit Steamfast SF-140

Net weight: 53g each pad

Custom designed and manufactured for SunSun Bio-Pond Filter CBF-350

LTWHOME Compatiable Foam and Carbon Rings Fit for Biorb Filter Set/Service Kit (Pack of 16) Packing include: 1pc polyester foamPack include: Carbon Pad x 8, Foam Pad x 8. Compatible with Biorb Filter Service Kit. Activated carbon sponges remove odors and keep water crystal clear. Fine pads catch small particles out of the water, provide efficient water flow with less clogging. Repeat after 4 6 weeks depending on stocking levels.