Size: 20 (1/8), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: N (NPT), Port Size: 01 (1/8), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: YZ (Combination of Y + Z), B: B

AS: AS, Body Size: 2 (1/8, 1/4 Basis), Style: 3 (Universal), Control Method: 0 (Meter-out), Thread: N (NPT), Port Size: 01 (1/8), Applicable Tube OD: 07 (1/4"), Option: S (Sealant), Lock Nut: J (Round)

Model: 51 (Bottom Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 8 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 51 (Bottom Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 11 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 3 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: P (Flat Ribbon Cable, 26 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 12 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 51 (Bottom Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 12 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: P (Flat Ribbon Cable, 26 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 6 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 4 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 51 (Bottom Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 5 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 4 Stations, P,E Port Location: U Side, A,B Port Size: 01 (1/8)

Model: 50 (Side Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 1 (Upward), Wiring Specification: All Double Wiring, Valve Stations: 2 Stations, P,E Port Location: D Side, A,B Port Size: 01 (1/8)

Body Size: 2 (1/8, 1/4), Type: 3 (Universal), Control Type: 0 (Meter-out), Indicator Direction: 1 (180°), Thread: N (NPT), Port Size: 01 (1/8), Width Across Flats: 9mm, Tubing: 07 (ø1/4"), Seal: S (w/Sealant)

Number of Ports: 2 Port, Piping Direct., Plunger Length: 0 (Side Ported, Long), Body Option: U (w/Bottom Mounting Thread), Port Size: 01 (R 1/8, Side Ported Only), Actuator Type: 33 (Push Button, Flush), Suffix: None, Indicator: None

Number of Ports: 2 Port, Piping Direct., Plunger Length: 0 (Side Ported, Long), Body Option: Side Mounting, Port Size: 01 (R 1/8, Side Ported Only), Actuator Type: 07 (Cross Roller Plunger), Suffix: S (Hard Steel Roller), Indicator: None

Number of Ports: 2 Port, Piping Direct., Plunger Length: 0 (Side Ported, Long), Body Option: Side Mounting, Port Size: 01 (R 1/8, Side Ported Only), Actuator Type: 05 (Straight Plunger), Suffix: None, Indicator: None, Bracket: B (w/Bracket)

Number of Ports: 2 Port, Piping Direct., Plunger Length: 0 (Side Ported, Long), Body Option: Side Mounting, Port Size: 01 (R 1/8, Side Ported Only), Actuator Type: 06 (Roller Plunger), Suffix: None, Indicator: None, Bracket: B (w/Bracket)

Body Size: 20, Thread: N (NPT), Port: 01 (1/8), Option: C [Float Type Auto Drain (N.C.)], Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)

Body Size: 2 (1/8, 1/4), Type: 3 (Universal), Control Type: 1 (Meter-in), Indicator Direction: 1 (180°), Thread: N (NPT), Port Size: 01 (1/8), Width Across Flats: 9mm, Tubing: 07 (ø1/4"), Seal: S (w/Sealant)

Body Size: 2 (1/8, 1/4), Type: 3 (Universal), Control Type: 1 (Meter-in), Indicator Direction: 1 (180°), Thread: N (NPT), Port Size: 01 (1/8), Width Across Flats: 9mm, Tubing: 03 (ø5/32"), Seal: S (w/Sealant)