Model: 31, Orifice: 2 (2.2mm), Style: 0 (N.C., Single Unit), Option: V (C37, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 2 (2.2mm), Style: 0 (N.C., Single Unit), Option: V (C37, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 33, Orifice: 4 (4mm), Style: 4 (COM, Single Unit), Option: V (C37, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

/Single Unit), Solenoid Valve Option: V (Brass Body, FKM Seal, Class B, for Non-Lube Treatment), Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 6 (12VDC), Electrical Entry: D (DIN Connector), Full-wave Rectifier: None

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 5 (24VDC), Lead Wire: DL (DIN Connector and Light)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 04 (1/2), Thread Type: N (NPT), Voltage: 5 (24VDC), Lead Wire: DL (DIN Connector and Light)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 02 (1/4), Thread Type: F (G), Voltage: 5 (24VDC), Lead Wire: DO (DIN Connector without Connector)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 01 (1/8), Thread Type: Rc, Voltage: 5 (24VDC), Lead Wire: DL (DIN Connector and Light)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 5 (24VDC), Lead Wire: DO (DIN Connector without Connector)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 02 (1/4), Thread Type: Rc, Voltage: 5 (24VDC), Lead Wire: DL (DIN Connector and Light)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 03 (3/8), Thread Type: Rc, Voltage: 5 (24VDC), Lead Wire: DL (DIN Connector and Light)

/Single Unit), Solenoid Valve Option: V [Brass Body (Aluminum for Air Type), FKM Seal, Class B], Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 5 (24VDC), Lead Wire: DO (DIN Connector without Connector)

Body Size: 450C [78SCFM (2,200l/Min)], Thread: N (NPT), Port Size: 04 (1/2), Accessory: B (Bracket), Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: F (Fluororubber), Air Pressure: Standard, Drain Guide: None, IN-OUT Direction: Standard, Degreasing Wash: V (Body/Housing Degreasing Wash, White Vaseline)

Magnet: D (Built-in), Series: A2 (Standard), Mounting: B (Basic), Tube Material: Aluminum, Bore Size: 40mm, Port Thread: TN (NPT), Stroke: 75mm, Rod Boot: None, Cushion: N (Rubber Bumper), Pivot Bracket: None, Rod End Bracket: V (Single Knuckle Joint), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal

Magnet: None, Mounting: B (Basic), Type: N (Rubber Bumper), Bore: 63mm, Port Thread Type: Rc (or M5, Depending on Style, Bore Size, and Thread Combination), Stroke: 100mm, Thread: Male Rod End, Suffix for Cylinder: w/o Rod Boot, Pivot Bracket: None, Rod End Bracket: V (Single Knuckle Joint)

Magnet: None, Mounting: B (Through Hole [Standard]), Bore Size: Ø32 mm, Port Thread Type: Rc: 32-100 Bore; M Thread 12 to 25 Bore, Water Resistant Seal: V (FKM Seal, Fluororubber), Stroke: 20 mm, Body Option: M (Rod End Male Thread), Auto Switch Groove: Z (Auto Switch Mounting Grooves)

Magnet: None, Mounting: B (Through Hole [Standard]), Bore Size: Ø50 mm, Port Thread Type: Rc: 32-100 Bore; M Thread 12 to 25 Bore, Water Resistant Seal: V (FKM Seal, Fluororubber), Stroke: 75 mm, Body Option: M (Rod End Male Thread), Auto Switch Groove: Z (Auto Switch Mounting Grooves)

Magnet: None, Mounting: B (Through Hole [Standard]), Bore Size: Ø50 mm, Port Thread Type: Rc: 32-100 Bore; M Thread 12 to 25 Bore, Water Resistant Seal: V (FKM Seal, Fluororubber), Stroke: 30 mm, Body Option: Standard (Rod End Female Thread), Auto Switch Groove: Z (Auto Switch Mounting Grooves)

Magnet: None, Mounting: B (Through Hole [Standard]), Bore Size: Ø63 mm, Port Thread Type: Rc: 32-100 Bore; M Thread 12 to 25 Bore, Water Resistant Seal: V (FKM Seal, Fluororubber), Stroke: 75 mm, Body Option: Standard (Rod End Female Thread), Auto Switch Groove: Z (Auto Switch Mounting Grooves)

Magnet: None, Mounting: B (Through Hole [Standard]), Bore Size: Ø63 mm, Port Thread Type: Rc: 32-100 Bore; M Thread 12 to 25 Bore, Water Resistant Seal: V (FKM Seal, Fluororubber), Stroke: 20 mm, Body Option: Standard (Rod End Female Thread), Auto Switch Groove: Z (Auto Switch Mounting Grooves)