Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 32 [Push Button (Extended)], Suffix: B (Push Button Selector Color Black)

Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 30 [Push Button (Mushroom)], Suffix: B (Push Button Selector Color Black)

Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 30 [Push Button (Mushroom)], Suffix: B (Push Button Selector Color Black), Accessory: F [Foot Bracket (Internal Pilot Type Only)

Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 32 [Push Button (Extended)], Suffix: B (Push Button Selector Color Black)

Body Option: 1 (External Pilot), Port Size: N02 (NPT1/4), Style: 30 [Push Button (Mushroom)], Suffix: B (Push Button Selector Color Black)

Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 34 [Twist Selector (2 Position)], Suffix: B (Push Button Selector Color Black)

Body Option: 0 (Internal Pilot), Port Size: N02 (NPT1/4), Style: 34 [Twist Selector (2 Position)], Suffix: B (Push Button Selector Color Black), Accessory: F [Foot Bracket (Internal Pilot Type Only)

Body Option: 1 (External Pilot), Port Size: N02 (NPT1/4), Style: 34 [Twist Selector (2 Position)], Suffix: B (Push Button Selector Color Black)

This is a legacy product, and replaced byAR30-N02-Z-B-X406, REGULATOR, MODULAR, AIRLINE EQUIPMENT, AR MASS PRO, DC, AR MASS PRO 1/4 MODULAR (PT), .73920 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 switch

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 01 (Roller Lever), Suffix: S (Hard Steel Roller), Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 35 ( Twist Selector, 3 Position), Suffix: Y (Yellow), Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 33 (Push Button, Flush), Suffix: None, Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 05 (Straight Plunger), Suffix: None, Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: U (w/Bottom Mouinting Thread), Port Size: N02 (NPT 1/4), Actuator Type: 34 (Twist Selector, 2 Position), Suffix: B (Black)

Number of Ports: 5 Port (Twist Selector, 3 Position Only), Body Option: U (w/Bottom Mouinting Thread), Port Size: N02 (NPT 1/4), Actuator Type: 35 ( Twist Selector, 3 Position), Suffix: B (Black)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 30 (Push Button, Mushroom), Suffix: G (Green), Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 06 (Roller Plunger), Suffix: None, Bracket: B (w/Bracket)

Number of Ports: 3 Port, Body Option: U (w/Bottom Mouinting Thread), Port Size: N02 (NPT 1/4), Actuator Type: 30 (Push Button, Mushroom), Suffix: B (Black)

Number of Ports: 3 Port, Body Option: Side Mounting, Port Size: N02 (NPT 1/4), Actuator Type: 30 (Push Button, Mushroom), Suffix: R (Red), Bracket: B (w/Bracket)

Number of Ports: 2 Port, Body Option: U (w/Bottom Mouinting Thread), Port Size: N02 (NPT 1/4), Actuator Type: 34 (Twist Selector, 2 Position), Suffix: B (Black)