Body Size: 30, Thread: N (NPT), Port: 03 (3/8), Option: D [Float Type Auto Drain (N.O.)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 12 (1 + 2), Semi-Standard 2: NZ (N + Z)

Body Size: 30, Thread: N (NPT), Port: 02 (1/4), Option: DE (D + E), Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 2 (Metal Bowl), 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: 2 (Metal Bowl), Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], 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: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: Standard, 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: G (Round Pressure Gauge w/Limit Indicator), Attachment: Standard, Semi-Standard 1: 2 (Metal Bowl), Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port: 04 (1/2), Option: Standard, Attachment: SV (S + V), Semi-Standard 1: 2J (2 + J), Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: DG (D + G), Semi-Standard 1: N (Non-Relieving Exhaust Mechanism), Semi-Standard 2: RZ (R + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: D (N.O. Float Type Auto Drain), Semi-Standard 1: N (Non-Relieving Exhaust Mechanism), Semi-Standard 2: RZ (R + Z)

Body Size: 30, Thread: N (NPT), Port Size: 03 (3/8), Option: Standard, Semi-Standard 1: 1N (1 + N), Semi-Standard 2: RZ (R + Z)

Body Size: 30, Thread: N (NPT), Port Size: 03 (3/8), Option: Standard, Semi-Standard 1: 1N (1 + N), Semi-Standard 2: WZ (W + Z)

Body Size: 30, Thread: N (NPT), Port Size: 03 (3/8), Option: G (For Sizes 10, 20, 30, 40 Round Type Pressure Gauge w/Limit Indicator; For For Size 10: Round Type Pressure Gauge w/o Limit Indicator ), Semi-Standard 1: 1N (1 + N), Semi-Standard 2: WZ (W + Z)

Body Size: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 02 (1/4), Options: E (Square Embedded Type Pressure Gauge, w/Limit Indicator), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 02 (1/4), Options: BE (B+E), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Air Filter Drain Port: J (Drain Guide 1/8: Body Size 20; Drain Guide 1/4: Body Size 30, 40), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Unit: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Guide 1/8: Body Size 20; Drain Guide 1/4: Body Size 30, 40), Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Unit: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]