Rectangular section piece used for connection between a flat surface and rectangular ducts; The smaller end is profiled for easy connection.
The flared end has an edge which that can be used for securing the piece with rivets or self-tapping screws;
Standard construction: H = 130.
CPV - Plenum
RRB - Double branch
RTR - T-piece - reducer
RSD - S-piece
RR - Reducer
RC - Bend
RCR - Reducing bend
RDSR - S-piece - reducer
RPRC - Transition piece, rectangular duct to circular surface
RCA - Cap
RPAA - Roof intake
RCSS - Transition piece, rectangular to circular
RTB - T-piece at 45°
RPA45 - Wall intake at 45°
RT - Straight duct
ATZ - Rectangular Silencer
CAP - Rainproof cap
RRL - Branch
RPA135 - Roof intake at 135°
RTE - T-piece
RFAR - Connection, vibration proof
RRP - Y branch