Protect your OdorHog roof vent filter from the elements while keeping septic and sewer odors under control. This all-weather mushroom cap sits on top of your OdorHog filter, made from heavy-duty charcoal grey PVC with three self-taping metal screws for a secure fit. It withstands UV rays, hail, and snow — shedding deep snowfall off the cap and onto the roof where it belongs. The OdorHog Mushroom Cap is an "all weather" cap that provides excellent venting and is our best value cap. Like all of our OdorHog filters, the body of the filter is available in White PVC or Black ABS. We recommend the ABS models for Northern US and other locations where sub-zero temps are likely. The plastic Slip-on models need no tools or glue to install – they slip right on 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 long lasting, 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 and put the new bag in and put the cap back on. Fresh charcoal in minutes! 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 odor applications. OdorHogs are designed for passive or ambient air flow, and are not suitable for applications where blowers or fans push or force air through the filter. How to Measure 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 OdorHogs 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 in fitting your non-standard size pipes. Please refer to our measuring guide. https://www.odorhog.com/pages/sizing-chart Standard VS. Commercial Carbon The difference between the standard and commercial carbon is the base material the carbon is made from. Standard carbon is made from a wood base and our commercial grade carbon 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. The commercial carbon 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 carbon as frequently. Both versions are pelletized for longer life and better air flow. The filter housing is the same for both versions of carbon. For example, if you purchased the standard carbon 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 [email protected] with any questions you have about your specific application.
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