What Sets a Phat Carbon Filter Apart Inside
The carbon is the argument. This one runs RC 412 virgin carbon, packed loose rather than pressed into pellets. Pellets need glues and binders to hold their shape, and every bit of surface those occupy is surface that cannot adsorb an odor molecule. Non-pelletized carbon keeps that area available. Filters ship sealed straight off the line, which holds the moisture level the carbon needs to work.
Sizing a 1400 CFM Filter Onto a Fan
Read the number the right way and this part is easy. 1400 CFM is the scrubbing rating, for recirculating air inside a room. Running it inline on an exhaust fan halves it to roughly 700 CFM, and that is the figure to match a fan against. A 1400 cfm filter in this body takes a 10 in flange. It sits at 43.25 in by about 15 in across and weighs 64 lbs. That weight decides your mount. Two ratchet hangers rated for the load, into structure rather than into tent poles, is the honest minimum. A conical base inside spreads air along the full length so no section does all the work. The aluminum outer mesh stays over half open, adding little static pressure. The prefilter that comes with it takes the dust. Service it on a schedule and the carbon lasts as it should.
Key Features
- 1400 CFM scrubbing, roughly 700 CFM exhaust: Halve the printed rating for inline use and size the fan against the lower number.
- 10 in flange: Mates directly to 10 in ducting, no reducer needed in the run.
- RC 412 virgin carbon, non-pelletized: No glues or binders occupying surface area that should be adsorbing odor.
- 64 lbs and 43.25 in long: Mount into structure with rated hangers rather than off tent poles.
- Conical internal base: Distributes airflow along the whole body instead of loading one end.
- Prefilter included: Takes dust before the carbon does, and it is a service item rather than a fit-and-forget part.
Technical Specifications
| Specification | Value |
|---|---|
| Model | IGSPF3910 |
| Length | 39 in (43.25 in overall) |
| Diameter | 10 in nominal, approx 15 in across the body |
| Flange | 10 in |
| Scrubbing Rating | 1400 CFM |
| Exhaust Rating | Approx 700 CFM (half the scrubbing figure) |
| Carbon | RC 412 virgin, non-pelletized |
| Weight | 64 lbs |
| Prefilter | Included |
| Base | Internal conical for even airflow |
| Outer Mesh | Aluminum, over half open area |
| Packaging | Sealed after manufacture to retain carbon moisture |