Model: 33, Orifice: 3 (3mm), Style: 0 (N.C., Single Unit), Option: N (SS/Ag, Seals: FKM, Class H), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: N (SS/Ag, Seals: FKM, Class H), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: CG (C + G), Attachment: K (Check Valve), Semi-Standard 1: 16C (1 + 6 + C), Semi-Standard 2: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: C [Float Type Auto Drain (N.C.)], Attachment: K (Check Valve), Semi-Standard 1: 16C (1 + 6 + C), Semi-Standard 2: NZ (N + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: DE (D + E), Attachment: Standard, Semi-Standard 1: 3 (Lubricator w/Drain Cock), Semi-Standard 2: NZ (N + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: KTV (K + T + V), Semi-Standard 1: 23 (2 + 3), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: G (Round Pressure Gauge w/Limit Indicator), Attachment: KSV (K + S + V), Semi-Standard 1: 8J (8 + J), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: Standard, Attachment: KSV (K + S + V), Semi-Standard 1: 8J (8 + J), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: D [Float Type Auto Drain (N.O.)], Attachment: K (Check Valve), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: Standard, Semi-Standard 1: 38 (3 + 8), Semi-Standard 2: NZ (N + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port: 02 (1/4), Option: DE (D + E), Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 25, Thread: N (NPT), Port: 02 (1/4), Option: Standard, Attachment: Standard, Semi-Standard 1: 38J (3 + 8 + J), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 40, Thread: N (NPT), Port: 02 (1/4), Option: C [Float Type Auto Drain (N.C.)], Attachment: KSTV (K + S + T + V), Semi-Standard 1: 16 (1 + 6), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 40, Thread: N (NPT), Port: 02 (1/4), Option: CM (C + M), Attachment: KSTV (K + S + T + V), Semi-Standard 1: 16 (1 + 6), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: DE (D + E), Attachment: Standard, Semi-Standard 1: 2 (Metal Bowl), Semi-Standard 2: NZ (N + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: D [Float Type Auto Drain (N.O.)], Attachment: Standard, Semi-Standard 1: 2 (Metal Bowl), Semi-Standard 2: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), 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: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)