Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: Relieving Type, Flow Direction: R (Flow Direction: Right to Left), Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: Relieving Type, Flow Direction: R (Flow Direction: Right to Left), Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: Relieving Type, Flow Direction: R (Flow Direction: Right to Left), Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Thread: F (G), Port: 01 (1/8), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: Standard, Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Standard

Model: 21, Orifice Diameter: 1 (2 mm), Valve/Body Configuration: 0 (N.C./Single Unit), Solenoid Valve Option: A (Brass Body, FKM Seal, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread Type: N (NPT), Voltage: 6 (12VDC), Lead Wire: C (Conduit)

Model: 31, Orifice: 1 (1.5mm), Style: 2 (N.O., Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: G (Round Pressure Gauge w/Limit Indicator), Attachment: Standard, Semi-Standard 1: 3C (3 + C), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: EH (E+H), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: Relieving Type, Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BC (B + C), Semi-Standard 1: R (Flow Direction Right to Left), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Body Size: 20, Thread: Rc, Port: 01 (1/8), Option: C [Float Type Auto Drain (N.C.)], Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 01 (1/8), Option: G (for Sizes 20, 25, 30, 40 Round Type Pressure Gauge w/Limit Indicator; for Size10: Round Type Pressure Gauge w/o Limit Indicator), Attachment: Standard, Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Standard

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: C [Float Type Auto Drain (N.C.)], Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: CG (C + G), Attachment: S (Pressure Switch), Semi-Standard 1: Standard, Semi-Standard 2: RZ (R + Z)

Body Size: 20, Thread: Rc, Port Size: 01 (1/8), Option: w/o Bracket; w/o Auto Drain, Semi-Standard 1: 6CR (6 + C + R), Semi-Standard 2: Standard

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: C (N.C. Float Type Auto Drain), Semi-Standard 1: 6 (Nylon Bowl), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Body Size: 20, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 01 (1/8), Option: C (N.C. Float Type Auto Drain), Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Thread: Rc, Port Size: 01 (1/8), Option: C (N.C. Float Type Auto Drain), Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: B (Bracket), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)