Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: RZ (R + Z)

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

Body Size: 20A, Thread: N (NPT), 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: V (3-Port Valve for Residual Pressure Release), Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: GH (G+H), Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: G (Round Pressure Gauge w/Limit Indicator), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Pressure Range: 0 (0.05~0.85MPa), Thread: F (G(PF)), Port Size: 01 (1/8), Option: BG (Bracket, w/Pressure Gauge)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard: YZ (Y + Z)

Body Size: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 01 (1/8), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard: NZ (N + Z)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: G (Round Type Pressure Gauge, w/Limit Indicator), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: G (For Sizes 20, 25, 30, 40: Round Pressure Gauge w/Limit Indicator; For Size 10 Round Pressure Gauge w/o Limit Indicator), Semi-Standard: Z (Name Plate & Pressure Gauge in Imperial Units: psi, °F)

Model: 31, Orifice: 3 (3mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: F (G), Port Size: 01 (1/8), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: F (G), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: F (G), Port Size: 01 (1/8), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 01 (1/8), Options: BG (B+G), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Back Flow: w/o Backflow, Thread: F (G), Port Size: 01 (1/8), Mounting Option: Without Mounting, Float Type Auto Drain Option: Without Auto Drain, Pressure Gauge/Switch Option: Without Pressure Gauge, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: Polycarbonate Bowl, Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction

Body Size: 20, Back Flow: w/o Backflow, Thread: F (G), Port Size: 01 (1/8), Mounting Option: B (With Bracket), Float Type Auto Drain Option: Without Auto Drain, Pressure Gauge/Switch Option: Without Pressure Gauge, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: Polycarbonate Bowl, Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction

Body Size: 1, Set Pressure: 2 (0.02 to 0.8 MPa), Exhaust Direction: 0 (Bottom Exhaust), Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-standard: RVZ (R + V + Z)

(1/8), Thread: F (G), Mounting Option: Mounting Screw, Round Head Combination Screw