Model: 33, Orifice: 4 (4mm), Style: 4 (COM, Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: E2 (Output: NPN output / Electrical entry: Wiring top entry), Attachment: SV (S + V), Semi-Standard 1: 8J (8 + J), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: SV (S + V), Semi-Standard 1: 8J (8 + J), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Model: 33, Orifice: 3 (3mm), Style: 4 (COM, Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: T (NPTF), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 3 (3mm), Style: 0 (N.C., Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 33, Orifice: 2 (2.2mm), Style: 0 (N.C., Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 1 (1.5mm), Style: 4 (COM, Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 32, Orifice: 4 (4mm), Style: 0 (N.C., Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Body Size: 250C [26SCFM (750l/Min)], Thread: F (G), Port Size: 02 (1/4), Accessory: None, Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 150C [10SCFM (300l/Min)], Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 150C [10SCFM (300l/Min)], Thread: Rc, Port Size: 02 (1/4), Accessory: None, Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 250C [26SCFM (750l/Min)], Thread: Rc, Port Size: 02 (1/4), Accessory: B (Bracket), Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 250C [26SCFM (750l/Min)], Thread: Rc, Port Size: 02 (1/4), Accessory: None, Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 250C [26SCFM (750l/Min)], Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)

Body Size: 40, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: SV (S + V), Semi-Standard 1: 36J (3 + 6 + J), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: TV (T + V), Semi-Standard 1: 8J (8 + J), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: Standard, Attachment: Standard, Semi-Standard 1: J (Drain Guide 1/8: Size 20; Drain Guide 1/4: Sizes 30, 40), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: H (Set Nut for Panel Mount), Semi-Standard 1: 12J (1 + 2 + J), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: H (Set Nut for Panel Mount), Semi-Standard 1: 2J (2 + J), 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: N (NPT), Port Size: 02 (1/4), Option: H (Set Nut for Panel Mount), Semi-Standard 1: 2J (2 + J), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)