The OdorHog Metal Cap is a louvered, galvanized steel cap that offers excellent venting capability. It is the top choice for aesthetics on the roofline and many times, matches or compliments other ducting and venting that is existing on the roof.

Like all of our OdorHog septic odor filters, the OdorHog Metal Cap filter is available in White PVC or Black ABS. We recommend the ABS models for locations that have potential for subzero temperatures.

The Slip-on models need no tools or glue to install – they slip over the vent pipe on the roof. If you have metal or cast iron pipes choose a Clamp-on model. A flathead screwdriver or a 5/16" nut driver is all you'll need to install this unit.

Each OdorHog has a replaceable mesh bag inside the body, with pelletized charcoal that is activated for the H2S molecule. Changing your charcoal out has never been easier and can be done while the OdorHog remains on the vent pipe! Just remove the cap, pull the old charcoal bag out by the handle, seat the new bag, and put the cap back on. Fresh charcoal in minutes!

OdorHog filters are designed for passive or ambient air flow and are not suitable for applications where blowers or fans push or force air.

 

Measuring Guide

To ensure a proper fit, measure your vent pipe's outside diameter (O.D.) and use the following table. Vent pipe manufacturers size their pipe by the inside diameter (I.D.). Because OdorHog filters fit over the outside of your vent pipe, we care what the outside diameter is. The O.D. you measure will be slightly larger than the actual filter size you order. This tells us whether you have a “standard thickness” of pipe and that your OdorHog will fit properly.

If you have metal or cast iron pipes, be sure to order the clamp-on style so it has more flexibility fitting your non-standard size pipes.

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Standard VS. Commercial Carbon

The difference between the standard and commercial charcoal is the base material used. Standard is made from a wood base, and our commercial grade charcoal is made from a coconut shell based carbon that has a higher sewer gas absorption capacity and is made for longer life. It is perfect for heavy hydrogen sulfide applications or for difficult access situations. 

Commercial charcoal is commonly used for restaurants, schools, strip malls, etc. It's also becoming more popular with residential customers who have steep pitched rooflines or don't want to change out their bag as frequently. 

Both versions are pelletized for longer life and better air flow. The filter housing is the same for both versions. For example, if you purchased the standard charcoal OdorHog and found it didn't last as long as you would like, you can purchase a commercial grade replacement bag and it will fit into the body of the OdorHog and last longer. 

Email info@OdorHog.com with any questions you have about your specific application.