Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Mounting: H (w/Set Nut, for Panel Fitting), Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: H (w/Set Nut, for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Relief, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: Rc, Supply Side, Connection Diameter: 1/4, Flow Direction: [Right] From Left to Right, Control Side Connection Type: Rc

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Not Provided] Non-relief, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: Rc, Supply Side, Connection Diameter: 1/4, Flow Direction: [Right] From Left to Right, Control Side Connection

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Not Provided] Non-relief, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: Rc, Supply Side, Connection Diameter: 1/4, Flow Direction: [Left] From Right to Left, Control Side Connection

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Relief, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: Rc, Supply Side, Connection Diameter: 1/4, Flow Direction: [Left] From Right to Left, Control Side Connection Type: Rc

Body Size: 20, Backflow: w/Backflow Function, Thread: Rc, Port Size: 1/4, Options: w/Set Nut, for Panel Mount, Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Upward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa, Made to Order: -

Body Size: 20, Backflow: w/Backflow Function, Thread: Rc, Port Size: 1/4, Mounting: w/Set Nut, for Panel Fitting, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

Size: 1/8, Reverse Flow: Regulator w/Backflow Mechanism, Thread: M Thread, Rc(PT), Port Size: 1/4, Accessory: Panel Mount w/Set Nut, Option 1: -, Option 2: -

This is a legacy product, and replaced byAR20-02H-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DA, AR MASS PRO 1/4 MODULAR (PT), 0.48272 lb

This is a legacy product, and replaced byAR20-02H-B, REGULATOR (SHIKOMI ORDER ONLY), AIRLINE EQUIPMENT, AR REGULATOR, DA, AR 1/4INCH MODULAR (PT), .59403 lb, Regulator Series ARPages 346 through to 355ModelPort sizeOptionsRegulator Series ARPages 346 through to 355AR201/8, 1/4BracketSquare embedded type pressure gauge (except the AR10)Round type pressure gauge Digital pressure

This is a legacy product, and replaced byAR20-02H-R-B, REGULATOR, MODULAR *LQA, AIRLINE EQUIPMENT, AR REGULATOR, DA, AR 1/4INCH MODULAR (PT), .59524 lb, Regulator Series ARPages 346 through to 355ModelPort sizeOptionsRegulator Series ARPages 346 through to 355AR201/8, 1/4BracketSquare embedded type pressure gauge (except the AR10)Round type pressure gauge Digital pressure

This is a legacy product, and replaced byAR20K-02H-B, http://smcpneumatics.com/assets/images/pdf/ar.pdf

This is a legacy product, and replaced byAR25K-02H-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DA, AR MASS PRO 1/4 MODULAR (PT), .56918 lb

This is a legacy product, and replaced byAR25-02H-B

This is a legacy product, and replaced byAR30-02H-B, REGULATOR, MODULAR *LQA, AIRLINE EQUIPMENT, AR REGULATOR, DA, AR 1/4INCH MODULAR (PT), .09038 lb, Regulator Series ARPages 346 through to 355ModelPort sizeOptionsRegulator Series ARPages 346 through to 355AR301/4, 3/8BracketSquare embedded type pressure gauge (except the AR10)Round type pressure gauge Digital pressure