Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Accessory: B (Bracket), Specifications: 3RY (3+R+Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Accessory: B (Bracket), Specifications: 1Y (1 + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: Backflow Function, Thread: NPT, Port Size: 1/8, Accessory: Bracket, Specifications: Flow Direction: Right to Left, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Size: 20, Backflow Function: Backflow Function, Thread: NPT, Port Size: 1/8, Accessory: Bracket, Specifications: 3 + R, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Size: 20, Backflow Function: Backflow Function, Thread: NPT, Port Size: 1/8, Accessory: Bracket, Specifications: 3+R+Y, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Size: 20, Backflow Function: Backflow Function, Thread: NPT, Port Size: 1/8, Accessory: Bracket, Specifications: 1 + Y, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Regulator, Pressure Boosting Valve: -, Regulator Type: -, Shape: -, Operating Environment: -, Compatible Fluid: -, Exhaust Mechanism (Air Bleed): -, Reverse Flow Function (Relief): -, Supply Side Connection Type: -, Supply Side, Connection Diameter: -, Flow Direction: -, Control Side Connection Type: -, Control Side, Connection Diameter: -, Pressure Gauge: -, Size of Body: -, Accessory: -

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Precision Control, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Bleed, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1/8, Flow Direction: [Right] From Left to Right, Control Side Connection

Regulator, Pressure Boosting Valve: -, Regulator Type: -, Shape: -, Operating Environment: -, Compatible Fluid: -, Exhaust Mechanism (Air Bleed): -, Reverse Flow Function (Relief): -, Supply Side Connection Type: -, Supply Side, Connection Diameter: -, Flow Direction: -, Control Side Connection Type: -, Control Side, Connection Diameter: -, Pressure Gauge: -, Size of Body: -, Accessory: -

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Precision Control, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Bleed, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1/8, Flow Direction: [Right] From Left to Right, Control Side Connection

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Precision Control, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Bleed, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1/8, Flow Direction: [Right] From Left to Right, Control Side Connection

This is a legacy product, and replaced byVHS20-N01B-KZ

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Accessory: None, Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE (B+E), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: E (Square Embedded Pressure Gauge w/Limit Indicator), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: EH (E+H), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: H (Set Nut for Panel Mount), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE4 (B+E4), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Accessory: E4 (PNP Output, Electrical Entry: Wiring Top Entry), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)