ROUND DUCT

RD

SPIRAL DUCT

SD

ROUND COLLA

RC

ROUND SADDLE

RS

ROUND TRANSITION

RT

ROUND OFFSET

RO

ROUND EBOW

RE

RECTANGULAR TO ROUND (RSD)

RTR (RSD)

ROUND WYE

WYE

ROUND TEE

TEE

CROSS TEE

CT

MITERED ELBOW 2-PIECE

E-2-M-90

REDUCING ELBOW

RE-5-90

Y-BRANCH OR PANT WYE

WB/PW

REDUCING LATERAL CROSS

RLC