16.5inX4' CARDBOARD JOIST LINE. R
Fits Models: RM978BXVF1 RM978BXVF2 RM978BXVM1 RM978BXVM2 RM978BXVN1 RM978BXVN2 RM978BXVW1 RM978BXVW2 RM988PXVF1 RM988PXVF2 RM988PXVF3 RM988PXVF4 RM988PXVF5 RM988PXVM1 RM988PXVM2 RM988PXVM3 RM988PXVM4 RM988PXVM5 RM988PXVN1 RM988PXVN2 RM988PXVN3 RM988PXVN4 RM988PXVN5 RM988PXVW1 RM988PXVW2 RM988PXVW3 RM988PXVW4 RM988PXVW5