Model: 31, Orifice: 3 (3mm), Style: 0 (N.C., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: S (w/Surge Voltage Suppressor), Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: None (for DC or AC Class H Coil)

.: 01 (1/8"), Port Size/Applicable Tubing O.D.: 33 (NPT 1/16"), Thread Material/Surface Treatment: A (Brass), Sealant: None, Release Button: 1 (Oval Type)

.: 01 (Screw Connection R1/8, Rc1/8), Thread Material/Surface Treatment: A (Brass), Sealant: S (Sealant), Release Button: 1 (Oval Type)

.: 01 (1/8), Thread Material/Surface Treatment: A (Brass)

This is a legacy product, and replaced byZSE20AF-Y-01-J ZSE30 VACUUM SWITCH. SWITCH. VACUUM SERIES. ZSE30 1/8 PORTED. .35756 lb. JC.

This is a legacy product, and replaced byZSE20AF-Y-01-J ZSE30 VACUUM SWITCH. SWITCH. VACUUM SERIES. ZSE30 1/8 PORTED. .27778 lb. JC.

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 20A, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Body Size: 20, Thread: Rc, Port: 01 (1/8), Option: CE (C + E), Attachment: T (T-spacer), Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Thread: Rc, Port: 01 (1/8), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Model Type: D (Filter Regulator + Mist Separator), Thread: N (NPT), Port Size: 01 (1/8), Float Type Auto Drain: C [N.C.

Body Size: 20, Thread: Rc, Port Size: 01 (1/8), Option: C (N.C. Float Type Auto Drain), Attachment: Standard, Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Standard

Body Size: 20, Thread: F (G), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Standard

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: M (Round Pressure Gauge w/ Color Zone), Semi-Standard: Standard

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: H (Set Nut for Panel Fitting), Semi-Standard: 1 (0.02 to 0.2MPa Setting)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: GH (G + H), Semi-Standard: 1 (0.02 to 0.2MPa Setting)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), 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: Standard

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: BM (B + M), Semi-Standard: R (Flow Direction: Right to Left)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 01 (1/8), Option: BM (B + M), Semi-Standard: Standard