Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BE4 (B+E4), Specifications: Y (Upward Facing Knob), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Size: 20, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 02 (1/4), Accessory: BG (B+G), 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: BG (B+G), Specifications: 3Y (3+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: BG (B+G), Specifications: 3Y (3+Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: 10 (ø10), Port Size/Applicable Tubing O.D.: 02 (R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plate), Sealant: P (Face Seal)

Size: 20 (1/8), Reverse Flow Function: Regulator, Standard, Thread: Rc, Port Size: 02 (1/4), Accessory 1: B (Bracket), Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: Y (Knob Upward), B: B

Size: 20 (1/8), Reverse Flow Function: Regulator, Standard, Thread: F (G), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: Y (Knob Upward), B: B

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: Ø10, Port Size/Applicable Tubing O.D.: 02 (Screw Connection R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plated), Sealant: S (Sealant)

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: Ø12, Port Size/Applicable Tubing O.D.: 02 (Screw Connection R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plated), Sealant: S (Sealant)

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: Ø4, Port Size/Applicable Tubing O.D.: 02 (Screw Connection R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plated), Sealant: S (Sealant)

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: Ø6, Port Size/Applicable Tubing O.D.: 02 (Screw Connection R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plated), Sealant: S (Sealant)

Series: KQ2, Model: U (Branch "Y"), Applicable Tubing O.D.: Ø8, Port Size/Applicable Tubing O.D.: 02 (Screw Connection R1/4, Rc1/4), Thread Material/Surface Treatment: N (Brass + Electroless Nickel Plated), Sealant: S (Sealant)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: 1Y (1 + Y)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: Y (Knob, Upward)

Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: Y (Knob, Upward)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: NY (N + Y)

Body Size: 20, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: RY (R + Y)

Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: RY (R + Y)

Body Size: 30, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: RY (R + Y)

Body Size: 30, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: Y (Knob, Upward)