Body Size: 20, Thread: F (G), Port Size: 01 (1/8), Option: w/o Mounting Option, w/o Pressure Gauge, Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: GH (G + H), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: G (For Sizes 20, 25, 30, 40: Round Pressure Gauge w/Limit Indicator; For Size 10 Round Pressure Gauge w/o Limit Indicator), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 20, Thread: F (G), Port Size: 02 (1/4), Option: H (Set Nut for Panel Fitting), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: BM (B + M), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
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: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: GH (G + H), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: H (Set Nut for Panel Fitting), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 03 (3/8), Option: BG (B + G), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 03 (3/8), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 03 (3/8), Option: G (For Sizes 20, 25, 30, 40: Round Pressure Gauge w/Limit Indicator; For Size 10 Round Pressure Gauge w/o Limit Indicator), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 03 (3/8), Option: w/o Mounting Option, w/o Pressure Gauge, Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: F (G), Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: F (G), Port Size: 02 (1/4), Option: B (Assembly of a Bracket & Set Nuts), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 25, Thread: F (G), Port Size: 02 (1/4), Option: w/o Mounting Option, w/o Pressure Gauge, Semi-Standard: N (Non-Relieving Exhaust Mechanism)
Body Size: 30, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: BM (B + M), Semi-Standard: N (Non-Relieving Exhaust Mechanism)
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: N (Non-Relieving Exhaust Mechanism)
Body Size: 30, Thread: Rc (Rc: for Sizes 20, 25, 30, 40; M5: for Size 10), Port Size: 02 (1/4), Option: H (Set Nut for Panel Fitting), Semi-Standard: N (Non-Relieving Exhaust Mechanism)