Bore: 12, Body: B (Standard), Stroke: 40mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal, Lead Wire or Prewired Connector: L (3m)

Bore: 12, Body: B (Standard), Stroke: 40mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9N--Solid State, Gen. Purpose, 3 Wire NPN, Horizontal, Lead Wire or Prewired Connector: L (3m)

Bore: 8, Body: B (Standard), Stroke: 100mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9N--Solid State, Gen. Purpose, 3 Wire NPN, Horizontal, Lead Wire or Prewired Connector: L (3m)

Bore: 20, Body: B (Standard), Stroke: 100mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9P--Solid State, Gen. Purpose, 3 Wire PNP, Horizontal, Lead Wire or Prewired Connector: SAPC (0.5m Cord Length, M8-3 Pin Connector)

Bore: 20, Body: B (Standard), Stroke: 150mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9PW--Solid State, 2-color Indication, 3 Wire PNP, Horizontal, Lead Wire or Prewired Connector: SDPC (0.5m Cord Length, M12-4 Pin Connector)

Bore: 12, Body: B (Standard), Stroke: 30mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal, Lead Wire or Prewired Connector: 0.5m (Or None in the Case of No Switch), Number: S (1 pc.)

Bore: 20, Body: B (Standard), Stroke: 50mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal, Lead Wire or Prewired Connector: Z (5m)

Bore: 12, Body: B (Standard), Stroke: 75mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9BW--Solid State, 2-color Indication, 2 Wire, Horizontal, Lead Wire or Prewired Connector: SAPC (0.5m Cord Length, M8-3 Pin Connector)

Bore: 16, Body: B (Standard), Stroke: 40mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9P--Solid State, Gen. Purpose, 3 Wire PNP, Horizontal, Lead Wire or Prewired Connector: SAPC (0.5m Cord Length, M8-3 Pin Connector)

Bore: 20, Body: B (Standard), Stroke: 125mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9N--Solid State, Gen. Purpose, 3 Wire NPN, Horizontal, Lead Wire or Prewired Connector: SAPC (0.5m Cord Length, M8-3 Pin Connector)

Bore: 12, Body: B (Standard), Stroke: 40mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction)

Bore: 16, Body: B (Standard), Stroke: 125mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9BA--Solid State, Water Resist., 2 Wire, Horizontal, Lead Wire or Prewired Connector: L (3m)

Bore: 20, Body: B (Standard), Stroke: 100mm, Adjuster Option: ZA (Metal Stopper w/Bumper, Extension, Retraction), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal, Lead Wire or Prewired Connector: L (3m)

Size: 1/2, Reverse Flow Function: Standard, Thread: G, Port Size: 1/2, Accessory 1: B+D, Accessory 2: Digital Pressure Switch PNP Output/Electrical Entry:Wiring Bottom Entry, Option 1: None, Option 2: None, Option 3: R+ZA

This is a legacy product, and replaced byAR20-N01E1-ZA-B, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, CC, AR MASS PRO 1/8 MODULAR (NPT), .56229 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 switch

Special Applications: 10- (Clean Room Compliant), Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE1 (B+E1), Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Special Applications: 10- (Clean Room Compliant), Size: 30, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE1 (B+E1), Specifications: RY (R+Y), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Special Applications: 10- (Clean Room Compliant), Size: 30, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE1 (B+E1), Specifications: 1RY (1+R+Y), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Body Size: 2, Set Pressure: 0 (Body Size 1, 2: 0.73 to 29 psi [0.005 to 0.2 MPa]; Body Size 3: 1.5 to 29 psi [0.01 to 0.2 MPa]), Exhaust Direction: 0 (Bottom Exhaust), Thread: N (NPT), Port Size: 02 (1/4), Option: B (w/Bracket), Semi-standard: ZA (Digital Pressure Switch: With Unit Conversion Function)

Body Size: 1, Set Pressure: 0 (Body Size 1, 2: 0.73 to 29 psi [0.005 to 0.2 MPa]; Body Size 3: 1.5 to 29 psi [0.01 to 0.2 MPa]), Exhaust Direction: 0 (Bottom Exhaust), Thread: Rc, Port Size: 01 (1/8), Option: B (w/Bracket), Semi-standard: ZA (Digital Pressure Switch: With Unit Conversion Function)