diff --git a/src/programs/ectrans-benchmark.F90 b/src/programs/ectrans-benchmark.F90
index 2e5232b9..35059838 100644
--- a/src/programs/ectrans-benchmark.F90
+++ b/src/programs/ectrans-benchmark.F90
@@ -147,7 +147,6 @@ program transform_test
 
 integer(kind=jpim) :: nmax_resol = 37 ! Max number of resolutions
 integer(kind=jpim) :: npromatr = 0 ! nproma for trans lib
-integer(kind=jpim) :: ncombflen = 1800000 ! Size of comm buffer
 
 integer(kind=jpim) :: nproc ! Number of procs
 integer(kind=jpim) :: nthread
@@ -379,7 +378,7 @@ program transform_test
 call gstats(1, 0)
 call setup_trans0(kout=nout, kerr=nerr, kprintlev=merge(2, 0, verbosity == 1),                &
   &               kmax_resol=nmax_resol, kpromatr=npromatr, kprgpns=nprgpns, kprgpew=nprgpew, &
-  &               kprtrw=nprtrw, kcombflen=ncombflen, ldsync_trans=lsync_trans,               &
+  &               kprtrw=nprtrw, ldsync_trans=lsync_trans,                                    &
   &               ldeq_regions=leq_regions, prad=zra, ldalloperm=.true., ldmpoff=.not.luse_mpi)
 call gstats(1, 1)
 
diff --git a/src/trans/external/setup_trans0.F90 b/src/trans/external/setup_trans0.F90
index 8f63af35..60779f54 100644
--- a/src/trans/external/setup_trans0.F90
+++ b/src/trans/external/setup_trans0.F90
@@ -9,7 +9,7 @@
 !
 
 SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
-&                       KPRGPNS,KPRGPEW,KPRTRW,KCOMBFLEN,&
+&                       KPRGPNS,KPRGPEW,KPRTRW,&
 &                       LDMPOFF,LDSYNC_TRANS,KTRANS_SYNC_LEVEL,&
 &                       LDEQ_REGIONS,K_REGIONS_NS,K_REGIONS_EW,K_REGIONS,&
 &                       PRAD,LDALLOPERM,KOPT_MEMORY_TR)
@@ -34,7 +34,6 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 !     KPRGPNS - splitting level in N-S direction in grid-point space [1]
 !     KPRGPEW - splitting level in E-W direction in grid-point space [1]
 !     KPRTRW  - splitting level in wave direction in spectral space [1]
-!     KCOMBFLEN - Size of communication buffer [1800000 (*8bytes) ]
 !     LDMPOFF - switch off message passing [false]
 !     LDSYNC_TRANS - switch to activate barriers in trmtol trltom [false]
 !     KTRANS_SYNC_LEVEL - use of synchronization/blocking [0]
@@ -74,7 +73,7 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 
 USE TPM_GEN             ,ONLY : NERR, NOUT, LMPOFF, LSYNC_TRANS, NTRANS_SYNC_LEVEL, MSETUP0, &
      &                          NMAX_RESOL, NPRINTLEV, NPROMATR, LALLOPERM, NSTACK_MEMORY_TR
-USE TPM_DISTR           ,ONLY : LEQ_REGIONS, NCOMBFLEN, NPRGPEW,NPRGPNS, NPRTRW
+USE TPM_DISTR           ,ONLY : LEQ_REGIONS, NPRGPEW,NPRGPNS, NPRTRW
 USE TPM_CONSTANTS       ,ONLY : RA
 
 USE SUMP_TRANS0_MOD     ,ONLY : SUMP_TRANS0
@@ -87,7 +86,7 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 IMPLICIT NONE
 
 INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR
-INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KPRGPNS,KPRGPEW,KPRTRW,KCOMBFLEN
+INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KPRGPNS,KPRGPEW,KPRTRW
 LOGICAL            ,OPTIONAL,INTENT(IN)  :: LDMPOFF
 LOGICAL            ,OPTIONAL,INTENT(IN)  :: LDSYNC_TRANS
 INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KTRANS_SYNC_LEVEL
@@ -121,7 +120,6 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 N_REGIONS_NS=1
 N_REGIONS_EW=1
 NPROMATR = 0
-NCOMBFLEN = 1800000
 LMPOFF = .FALSE.
 LSYNC_TRANS=.FALSE.
 NTRANS_SYNC_LEVEL=0
@@ -170,9 +168,6 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 IF(PRESENT(KPRTRW)) THEN
   NPRTRW = KPRTRW
 ENDIF
-IF(PRESENT(KCOMBFLEN)) THEN
-  NCOMBFLEN = KCOMBFLEN
-ENDIF
 IF(PRESENT(LDMPOFF)) THEN
   LMPOFF = LDMPOFF
 ENDIF
diff --git a/src/trans/include/ectrans/setup_trans0.h b/src/trans/include/ectrans/setup_trans0.h
index d47d103f..80f4f3a7 100644
--- a/src/trans/include/ectrans/setup_trans0.h
+++ b/src/trans/include/ectrans/setup_trans0.h
@@ -10,7 +10,7 @@
 
 INTERFACE
 SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
-&                       KPRGPNS,KPRGPEW,KPRTRW,KCOMBFLEN,&
+&                       KPRGPNS,KPRGPEW,KPRTRW,&
 &                       LDMPOFF,LDSYNC_TRANS,KTRANS_SYNC_LEVEL,&
 &                       LDEQ_REGIONS,K_REGIONS_NS,K_REGIONS_EW,K_REGIONS,&
 &                       PRAD,LDALLOPERM,KOPT_MEMORY_TR)
@@ -35,7 +35,6 @@ SUBROUTINE SETUP_TRANS0(KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR,&
 !     KPRGPNS - splitting level in N-S direction in grid-point space [1]
 !     KPRGPEW - splitting level in E-W direction in grid-point space [1]
 !     KPRTRW  - splitting level in wave direction in spectral space [1]
-!     KCOMBFLEN - Size of communication buffer [1800000 (*8bytes) ]
 !     LDMPOFF - switch off message passing [false]
 !     LDSYNC_TRANS - switch to activate barrier before transforms [false]
 !     KTRANS_SYNC_LEVEL - use of synchronization/blocking [0]
@@ -74,7 +73,7 @@ USE EC_PARKIND  ,ONLY : JPIM     ,JPRD
 IMPLICIT NONE
 
 INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KOUT,KERR,KPRINTLEV,KMAX_RESOL,KPROMATR
-INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KPRGPNS,KPRGPEW,KPRTRW,KCOMBFLEN
+INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KPRGPNS,KPRGPEW,KPRTRW
 LOGICAL            ,OPTIONAL,INTENT(IN)  :: LDMPOFF
 LOGICAL            ,OPTIONAL,INTENT(IN)  :: LDSYNC_TRANS
 INTEGER(KIND=JPIM) ,OPTIONAL,INTENT(IN)  :: KTRANS_SYNC_LEVEL
diff --git a/src/trans/internal/tpm_distr.F90 b/src/trans/internal/tpm_distr.F90
index 8ada1a93..ce0064f6 100644
--- a/src/trans/internal/tpm_distr.F90
+++ b/src/trans/internal/tpm_distr.F90
@@ -32,7 +32,6 @@ MODULE TPM_DISTR
 INTEGER(KIND=JPIM) :: MYPROC    ! My processor number
 INTEGER(KIND=JPIM) :: MYSETW    ! My set number in wave direction (spectral space) 
 INTEGER(KIND=JPIM) :: MYSETV    ! My set number in field direction(S.S and F.S)
-INTEGER(KIND=JPIM) :: NCOMBFLEN ! Size of communication buffer
 
 INTEGER(KIND=JPIM) :: MTAGLETR   ! Tag
 INTEGER(KIND=JPIM) :: MTAGML     ! Tag