Size: 20 (1/8), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: B (Bracket), Pressure Gauge Angle: G2 (90°), Accessory 2: None, Option: NZ (Non-relieving+ Name Plate & Gauge w/PSI), B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: Rc, Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: H (Set Nut), Option: None, B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: Rc, Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: N (Non-relieving), B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: Rc, Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G2 (90°), Accessory 2: H (Set Nut), Option: None, B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: Rc, Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G3 (180°), Accessory 2: H (Set Nut), Option: None, B: B

Size: No.1, Orifice: 2 (3mm), Style: 0 (Normally Closed), Option: B (For Other Fluid, Consult SMC -- Seal: EPR, Body: Brass), Port Size: 02 [1/4 (8A)], Thread: N (NPT), Bracket: B (Bracket)

Body Size: 20, Thread: Rc, Port Size: 02 (1/4), Handle/Bonnet Material: B (Aluminum), Options: B (w/Bracket), Semi-Standard: R (Flow Direction: Right to Left)

Size: 1 (Body Ported), Pilot: 0 (Internal Pilot), Power Source, Command Signal: 24V, 1~5V, Port Size: 02 (1/4), Thread: N (NPT), Option: B (Bracket)

Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: BCG (B + C + G), Semi-Standard 1: 1C (1 + C), Semi-Standard 2: Standard

Size: 30, Backflow Function: K (Backflow Function), Thread: F (G), Port Size: 02 (1/4), Accessory: BG (B+G)

Size: 20, Backflow Function: None, Thread: Rc, Port Size: 02 (1/4), Accessory: B (Bracket), Specifications: 3Y (3+Y)

Size: 20, Backflow Function: K (Backflow Function), Thread: F (G), Port Size: 02 (1/4), Accessory: BE (B+E)

Size: 20, Backflow Function: K (Backflow Function), Thread: F (G), Port Size: 02 (1/4), Accessory: BG (B+G)

Body Size: 250C, Thread: Rc, Port Size: 02 (1/4), Accessory: B (Bracket), Auto Drain: C (N.C. Auto Drain)

Size: 30 (3/8), Port Size: 02 (1/4, Size 20), Accessories: B (Mounting Bracket), Handle Orientation: Handle Down

Size: Size 20, Power Voltage: 6 (220V(50Hz)), Thread: N (NPT), Port Size: 02 (1/4), Option: B (Bracket)

Body Size: 20, Backflow: without Backflow Function, Thread: F (G), IN Port Size: 02 (1/4), OUT Port Size: 02 (1/4), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 MPa Setting, Exhaust Mechanism: Relieving Type, Knob: Downward, Pressure Unit: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 30, Backflow: without Backflow Function, Thread: F (G), IN Port Size: 02 (1/4), OUT Port Size: 02 (1/4), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 MPa Setting, Exhaust Mechanism: Relieving Type, Knob: Downward, Pressure Unit: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Size: 40, Backflow Function: None, Thread: F (G), Port Size: 02 (1/4), Accessory: BE (B+E), Specifications: 1 (0.005 to 0.2 MPa Setting)

Size: 20, Backflow Function: K (Backflow Function), Thread: Rc, Port Size: 02 (1/4), Accessory: B (Bracket), Specifications: 1 (0.005 to 0.2 MPa Setting)