Clean Series: 21 (Copper, Fluorine and Silicon-free + Low Particle Generation), Stations: 08, Cylinder Port: C4 (w/One-touch Fitting for ø4), Kit: FU2 (w/3 m Cable, Top Entry), Option: N (w/Name Plate)

Clean Series: 21 (Copper, Fluorine and Silicon-free + Low Particle Generation), Stations: 03, Cylinder Port: C6 (w/One-touch Fitting for ø6), Kit: FS0 (w/o Cable, Side Entry), Option: D (DIN Rail Mount Style)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: G [Round Pressure Gauge ("20-" Type Includes Limit Indicator)], Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

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: GH (G+H), Specifications: 1R (1+R)

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: G [Round Pressure Gauge ("20-" Type Includes Limit Indicator)], Specifications: Y (Upward Facing Knob)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 04 (1/2), Accessory: H (Set Nut for Panel Mount), Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: None, Thread: N (NPT), Port Size: 04 (1/2), Accessory: H (Set Nut for Panel Mount), Specifications: 1R (1+R), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

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: H (Set Nut for Panel Mount), Specifications: 3 (0.008 to 0.6 MPa Setting)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: None, Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: GH (G+H), Specifications: 3R (3+R), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: None, Thread: F (G), Port Size: 04 (1/2), Accessory: None, Specifications: 3 (0.008 to 0.6 MPa Setting)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 04 (1/2), Accessory: None, Specifications: R (Flow Direction: Right to Left), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: G [Round Pressure Gauge ("20-" Type Includes Limit Indicator)], Specifications: 1R (1+R), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 02 (1/4), Accessory: G [Round Pressure Gauge ("20-" Type Includes Limit Indicator)], Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: None, Specifications: 1R (1+R), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Special Applications: 21- (Clean-room, Copper-free, Fluorine-free, Silicon-free), Size: 40, Backflow Function: None, Thread: N (NPT), Port Size: 04 (1/2), Accessory: G [Round Pressure Gauge ("20-" Type Includes Limit Indicator)], Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Clean Series: 21 [Relief Type (Copper, Fluorine & Silicon-free + Low Particle Generation)], Magnet: D (Built-in), Mounting: G (Head Side Flange Style), Bore Size: 40mm, Port Thread: TN (NPT), Stroke: 200mm, Cushion: Rubber Bumper, Rod End Thread: F (Female Rod End), Auto Switch: M9P--Solid State, Gen.

Passage: 21 (Top Ported Common EXH), Stations: 9 Stations Top Ported/Valve, Port Size: None, Thread: 00T (NPTF)