Size: 20 (1/8), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: Z (Name Plate & Gauge w/PSI), B: B, Made to Order: X406 (0.4 MPa Setting)

Size: 20 (1/8), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G4 (270°), Accessory 2: None, Option: Z (Name Plate & Gauge w/PSI), B: B, Made to Order: X406 (0.4 MPa Setting)

Size: 20 (1/8), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: H (Set Nut), Option: Z (Name Plate & Gauge w/PSI), B: B, Made to Order: X406 (0.4 MPa Setting)

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 02 (1/4), Thread: Rc, Voltage: 1 (100VAC 50/60HZ), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier)

Body Size: 2 (1/8, 1/4), Control Type: 0 (Meter-out), Thread Type: G (G), Port Size: 02 (1/4), Applicable Tubing O.D.: 08 (ø8), Seal Method: w/o Sealant, Option: B (None)

Body Size: 2 (1/8, 1/4), Control Type: 0 (Meter-out), Thread Type: G (G), Port Size: 02 (1/4), Applicable Tubing O.D.: 10 (ø10), Seal Method: w/o Sealant, Option: B (None)

Size: No.1, Orifice: 1 (1.5mm), Option: A (For Water up to 60°C and Oil, Consult Catalog -- Seal: FKM, Body: Brass), Port Size: 02 [1/4 (8A)], Thread: T (NPTF), Bracket: B (Bracket)

Body Size: 20, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BC (B + C), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: RZ (R + Z)

Body Size: 30, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BD (B + D), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: RZ (R + Z)

Body Size: 40, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BC (B + C), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Body Size: 40, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Body Size: 20, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Body Size: 30, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: Standard

Size: 40 (1/2), Thread: M Thread, Rc(PT), Port Size: 02 (1/4), Accessory: B (Bracket), Option 1: 11 (1000cm³ Tank w/Switch Lower Limit OFF), Option 2: R (Flow Direction: Right->Left)

Body Size: 20, Thread: Rc, Port Size: 02 (1/4), Option: B (Bracket), Semi-Standard 1: J (Drain Guide: 1/8 for Body Size 20; 1/4 for Body Size 30 & 40), Semi-Standard 2: Standard

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 02 (1/4), Thread: Rc, Voltage: 1 (100VAC 50/60HZ), Electrical Entry: T (with Conduit Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Size: 30, Backflow Function: K (Backflow Function), Thread: F (G), Port Size: 02 (1/4), Accessory: BE (B+E), Specifications: 3 (0.008 to 0.6 MPa Setting)

Size: 20, Backflow Function: K (Backflow Function), Thread: F (G), Port Size: 02 (1/4), Accessory: BE4 (B+E4), Specifications: 3 (0.008 to 0.6 MPa Setting)