Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: CG (C + G), Semi-Standard 1: CN (C + N), 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: Standard, Semi-Standard 1: CN (C + N), Semi-Standard 2: RZ (R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), 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: CN (C + N), Semi-Standard 2: RZ (R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: GH (G + H), Semi-Standard 1: CN (C + N), 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: CN (C + N), 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: 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: CN (C + N), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Override: Non-locking Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

), Manual Override: Non-locking Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

: Non-locking Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Suppressor), Manual Override: Non-locking Push Style, Vacuum Switch Model: E15 (1 Output w/o Analog Output, 200° Setting), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Suppressor), Manual Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

), Manual Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)

Suppressor), Manual Override: Non-locking Push Style, Vacuum Switch Model: E55 (1 Output w/o Analog Output, 200° Setting, PNP Output), Vacuum Switch Electrical Entry: CN (Connector w/o Lead Wire)