The Nelsen High Flow Residential Timer Carbon Filter combines microprocessor-controlled automation with high-grade coconut shell carbon to remove chlorine, volatile organic compounds, and chemical contaminants from your entire home's water supply. Available in five tank sizes from 9" x 48" to 14" x 65", this whole house system delivers service flow rates from 9 to 20+ GPM depending on configuration.
Nelsen High Flow Timer Carbon Filter Options
| Carbon Capacity | 1.0, 1.5, 2.0, 2.5, or 3.0 cubic feet |
| Service Flow Rate | 9 GPM (1.0 cu ft), 12 GPM (1.5 cu ft), 13 GPM (2.0 cu ft), 18 GPM (2.5 cu ft), higher for 3.0 cu ft |
| Tank Dimensions | 9" x 48", 10" x 54", 12" x 52", 13" x 54", or 14" x 65" |
| Control Valve | IPW WS1 with microprocessor, 1-28 day timer, capacitor backup |
| Carbon Type | Activated coconut shell or catalytic coconut shell carbon |
| Power Supply | 15 VDC transformer with two-hour power carry over |
System Setup and Operation
- Install the mineral tank in a location with adequate clearance for service and backwash connections, ensuring incoming water pressure is between 25-80 PSI and flow rate meets minimum backwash requirements for your selected model size.
- Connect the 15 VDC transformer and program the IPW WS1 control valve using the front panel settings, selecting regeneration frequency based on water usage and contaminant levels (1-28 day override available).
- Set regeneration mode to down-flow or up-flow depending on your system requirements, then initiate a manual backwash cycle to properly condition the coconut shell carbon media before placing the system into service.
- Monitor the back-lit display panel for system operation data, which is stored in non-volatile memory and protected by capacitor backup during brief power outages.
Best Applications for Carbon Filtration
The Nelsen High Flow Timer Carbon Filter is designed for municipal water supplies where chlorine, chloramines, volatile organic compounds (benzene, trichloroethylene, pesticides, petroleum compounds), and chemical taste and odor are primary concerns. This system works best when preceded by a sediment filter to remove particulates like sand, rust, and silt, as activated carbon is not optimized for physical particulate removal. Size your system based on household flow demands: 1.0-1.5 cu ft models suit smaller homes (9-12 GPM), while 2.0-3.0 cu ft units support larger households requiring higher service flow rates.
Assembled vs. Unassembled — What's the Difference?
Unassembled
The mineral tank, control valve, and fittings ship as separate components, with your carbon media included but not loaded. You'll pour the media into the tank, mount the valve, and hook up your bypass — a straightforward job for anyone comfortable with basic plumbing, typically 1–2 hours.
Assembled
We pour the carbon media into the tank, mount the valve, and pressure-test the complete unit in our shop before it ships. It arrives ready to set in place and connect to your home's water line — no media pouring or valve-to-tank assembly required on your end.
Why the price difference? The assembled option reflects the labor to load the carbon media, mount the valve, and pressure-test the unit here before it ships, plus the extra care in packaging a fully built system for freight. Either option is the same filter underneath — assembled just saves you the media pour and the bench work.
🔧 Always install a 5-20 micron sediment pre-filter upstream of your carbon system to protect the coconut shell media from premature fouling and extend filter life, especially if your water contains visible particulates or iron staining.
