| FI-R622-BCC | 2nd Stage Reg;7in Set;1/2x1/2 |
| FI-R622-BCF | 2nd Stg Reg;1/2FNPTx1/2FNPT;9-13in. w.c; 875,000 btu |
| FI-R622-BCFXA | 2nd Stage Reg;Vent Over Outlet |
| FI-R622-BCG | 1/2x1/2FPT 2nd-Stage;13in-20in wc;Set 14in wc |
| FI-R622-BCMXB | 2nd Stage Reg;28in Set;1/2 X1/2 |
| FI-R622-CFF | 2nd Stg Reg;1/2FNPTx3/4FNPT;9-13wc;1,400,000 btu |
| FI-R622-CFFXA | 2nd Stage Reg;Vent Over Outlet |
| FI-R622-CFFXB | 2nd Stage;Vent OPP Gage Taps |
| FI-R622-CFG | 2nd Stage Reg |
| FI-R622-CFGXA | 2nd Stage Reg;18in Set;1/2X 3/4 |
| FI-R622-DFF | 2nd Stg Reg;3/4FNPTx3/4FNPT;9-13wc;1,400,000 btu |
| FI-R622-DFG | 3/4x3/4FPT 2nd-Stage;13in-20in wc;Set 14in wc |
| FI-R622E-BCH | Two-PSI Service Reg;1/2x1/2FNPT;2PSI(1-2PSI outlet range) |
| FI-R622E-DCH | 2PSI Service Reg;3/4FNPTx3/4FNPT;2PSI(1-2PSI outlet range);1,680,000btu |
| FI-R622H-BGJ | 1/2FNPTx1/2FNPT;10PSI(8-12PSI adj);2,100,000btu |
| FI-R622H-BGK | HF 1st Stage Reg;1/2FNPTx1/2FNPT;(4-6PSI) |
| FI-R622H-DGJ | 3/4FNPTx3/4FNPT;10PSI(8-12PSI adj);2,100,000btu |
| FI-R622H-DGK | 3/4FNPT x 3/4FNPT;10PSI(4-6PSI adj);2,100,000btu |
| FI-R622H-HGJ | 1st Stg HF Reg;FPOLx1/2FNPT;10PSI (8-12PSI adj);2,100,000btu |
| FI-R622H-HGK | FPOL x 1/2FNPT;5PSI (4-6PSI adj);2,000,000btu |
| FI-R622H-JGJ | FPOLx3/4FNPT;10PSI set;(8-12PSI adj);2,250,000btu |
| FI-R622H-JGK | FPOL x 3/4FNPT;5PSI set;(4-6PSI adj);2,250,000bu |
