Filter Media Cup Adapter Only – 4 Inch – Media Cup

The 4″ Filter Media Cup adapter slides onto the Filter Media Cup to accommodate C shaped filter sock holders or those with slightly larger diameter holders. They will not fit Trigger Systems Sumps with an oval-shaped sock holder. Dimensions: 3.5″ Inside Diameter, 4.6″ Outside diameter Color: Sea Foam White Material: 100% Virgin BPA free Polypropylene (typically used in Tupperware). Material Certs. are available upon request.