Model: 31, Orifice: 1 (1.5mm), Style: 2 (N.O., Single Unit), Option: M (SS, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 33, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Z (Oil-free), Port Size: 02 (1/4), Thread: N (NPT), Voltage: 1 (100VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 33, Orifice: 2 (2.2mm), 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)

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: C (C37, Seal:Poppet-FFKM,Fixed-PTFE, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 4 (220VAC 50/60HZ), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: H (Stainless Steel, Seals: FKM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Fitting Type: B (Branch Tee), Metric Size, Side A: 21 (Tube O.D. 1/8", Tubing Size mm 6x4), Inch Size, Side A: No (Select Metric Size, Side A), Metric Size, Side B: No (For Types H and L, and Types B or R w/Same Tubing Size), Inch Size, Side B: No (For Types H and L, and Types B or R w/Same Tubing Size), Piping: F (Female), Thread: N (NPT), Packaging: 1 (Standard Packaging Equivalent to Class

Fitting Type: B (Branch Tee), Metric Size, Side A: 23 (Tube O.D. 1/4", Tubing size mm 6x4), Inch Size, Side A: No (Select Metric Size, Side A), Metric Size, Side B: No (For Types H and L, and Types B or R w/Same Tubing Size), Inch Size, Side B: No (For Types H and L, and Types B or R w/Same Tubing Size), Piping: F (Female), Thread: N (NPT), Packaging: 1 (Standard Packaging Equivalent to Class

Body Class: 3 (Orifice Diameter ø8), Valve Type: 1 (Normally Open), Applicable Tube OD: 11 (3/8), Port B OUT: Ports A & B Same Size, Pilot Port: N (Body Class 3, 4, 5, 6 - NPT 1/8")

Body Class: 4 (Orifice Diameter ø10), Valve Type: 0 (Normally Closed), Applicable Tube OD: 13 (1/2), Port B OUT: Ports A & B Same Size, Pilot Port: N (Body Class 3, 4, 5, 6 - NPT 1/8")

Body Class: 3 (Orifice Diameter ø8), Valve Type: 0 (Normally Closed), Applicable Tube OD: 07 (1/4), Port B OUT: Ports A & B Same Size, Pilot Port: N (Body Class 3, 4, 5, 6 - NPT 1/8")

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, 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

Size: 30 (3/8), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: F (G), 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: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G2 (90°), Accessory 2: None, Option: Z (Name Plate & Gauge w/PSI), B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G3 (180°), Accessory 2: None, Option: Z (Name Plate & Gauge w/PSI), B: B

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, 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

Size: 30 (3/8), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 03 (3/8), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: 1NZ (Combination of 1, N & Z), B: B