GE Exterior Refrigerator/Icemaker Filter. GE has discontinued the GXRTQR and GXRTQ and replaced them with the GXRTDR, which features internal push to connect fittings, rather than the external fittings used with the GXRTQ system. The GE GXRTQR is the quick connect replacement for the GXITD, GXITQ and GXRTQ refrigerator and icemaker filters. It is easy to install and reduces bad taste and odor, chlorine, sediment and rust from your water and ice. Quick connect fittings for easy installation. No special tools required.