The LG 5201JA1099D Joint Pipe is the correct replacement for the following model numbers.
Joint Pipe Assembly
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GRK243DG
grk243dg
GRK243DS
grk243ds
GRK243PRA
grk243pra
GRK243PRS
grk243prs
GRK243UG
grk243ug
GRK24PS
grk24ps
GRK24UN
grk24un
GRK243DG
grk243dg
GRK243DS
grk243ds
GRK243PRA
grk243pra
GRK243PRS
grk243prs
GRK243UG
grk243ug
GRK24PS
grk24ps
GRK24UN