LINE SET DMS 612K0300L,612K0300L,Line sets,3/8 x 3/4 line set lineset 3/8" x 3/4" mini split 3/8X3/4X1/2 3/8"x3/4"x1/2" linesets lineset-dms,3/8in. X 3/4in. X 1/2in. ERC X 30' LS,Meier Supply Co., Inc.