| Item | Description |
| FLK-60106-00 | Piston Assy, 3900 Upper |
| FLK-60107-00 | Piston Assy, HWBP, 3900 Lower |
| FLK-60131 | Seal & Spacer Kit, 3150/3900 Upper |
| FLK-60132 | Seal & Spacer Kit, 3900 Lower |
| FLK-60036-02 | 1800 Brine Valve, 3150/3900, Design 3 |
| FLK-60276-01 | 1800 Brine Valve, 3150/3900, Retrofit Kit #2 To #3 |
| FLK-60277-XX | 1800 Injector Assembly, Complete, 3150/3900, Specify Size |
| FLK-60710-XX | 1800 Brine Line Flow Control BLFC, Brass, Specify Size |
| FLK-60057-03 | Drive Assy, 24V, 50/60Hz, 3150/3900 Upper, Sys #5 Or Sys #7 |
| FLK-60057-01 | Drive Assy, 110V, 50/60Hz, 3150/3900 Upper, Sys #5 & #7 |
| FLK-60057-11 | Drive Assy, 110V, 50/60Hz, 3150/3900 Upper, Sys #4 Or #6 |
| FLK-60058-03 | Drive Assy, 24V, 50/60Hz, 3900 Lower, Sys #7 Lead & Triplex |
| FLK-60058-01 | Drive Assy, 110V, 50/60Hz, 3900 Lower, Sys #4 |
| FLK-42581 | Drive Motor, 24V, 50/60Hz, 6Va, 0.25 Amp, 3150/3900 |
| FLK-40392 | Drive Motor, 110V, 50/60Hz, 66Va, 0.7 Amp, 3150/3900 |
| FLK-60617 | 3″ Brass Meter Assy, Electronic, Paddle, Inline, 3900 Standard |
| FLK-60608-02 | 3″ Brass Meter Assy, Paddle, Inline, 3900 Extended Range |
| FLK-60608-01 | 3″ Brass Meter Assy, Paddle, Inline, 3900 Standard |
| FLK-15513 | Meter Cable 17.5″, 2750/3150/3900 |
| FLK-19121-03 | Meter Cable Assy, Electronic, 8’, 3150/3900 3200Et & Systemax |
| FLK-19121-04 | Meter Cable Assy, Electronic, 25’, System 6 & 7 And 3200Et |
