This is a legacy product, and replaced byAR20K-02-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DA, AR MASS PRO 1/4 MODULAR (PT), .49553 lb

This is a legacy product, and replaced byAR25-02-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DA, AR MASS PRO 1/4 MODULAR (PT), .53578 lb

This is a legacy product, and replaced byAR25K-02-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DA, AR MASS PRO 1/4 MODULAR (PT), .52822 lb

Model: 50 (Side Ported), SI Unit Common Specs: Positive Common, Wiring Specification: All Double Wiring, Valve Stations: 3 Stations, P, E Port Location: B (Both Sides), A, B Port - Thread Piping: 02 (1/4), Thread: N (NPT)

Model: 50 (Side Ported), SI Unit Common Specs: Positive Common, Wiring Specification: All Double Wiring, Valve Stations: 2 Stations, P, E Port Location: B (Both Sides), A, B Port - Thread Piping: 02 (1/4), Thread: N (NPT)

Size: 30, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: B (Bracket), Specifications: 1RY (1 + R + Y), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Size: 40, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: B (Bracket), Specifications: 1Y (1 + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 30, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: B (Bracket), Specifications: 1Y (1 + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE (B+E), Specifications: 1RY (1 + 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: 02 (1/4), Accessory: B (Bracket), Specifications: 1Y (1 + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 30, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: BG (B+G), Specifications: 1RY (1 + R + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: BG (B+G), Specifications: 1RY (1 + R + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 0 (Normally Closed), Port Size: 02 (1/4), Thread: N (NPT), Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: 1 (Flow Rate Adjustment)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 1 (Normally Open), Port Size: 02 (1/4), Thread: N (NPT), Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: None, Specification: V (Vacuum)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 2 (Double Acting), Port Size: 02 (1/4), Thread: N (NPT), Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: 1 (Flow Rate Adjustment)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 0 (Normally Closed), Port Size: 02 (1/4), Thread: R, Rc, Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: 1 (Flow Rate Adjustment)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 1 (Normally Open), Port Size: 02 (1/4), Thread: R, Rc, Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: None, Specification: V (Vacuum)

Body Class: 2 (Class 2, Orifice ø4), Valve Type: 2 (Double Acting), Port Size: 02 (1/4), Thread: R, Rc, Material: B (Body: PPS, Endplate: PPS, Diaphragm: PTFE), Option: 1 (Flow Rate Adjustment)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: K (Backflow Function), Thread: Rc, Port Size: 02 (1/4), Accessory: BG (B+G), Specifications: 1R (1+R)

Size: 3 (1/4), Cleaning Grade: 1 (B Grade: Ultrasonic Cleaning), Pressure Setting: 0 (0.02 to 0.2MPa), Relief Function: 0 (Non-relieving), Thread: A (Metal Gasket Seal Fitting), Port Size: 02 (Rc1/4)