![Amazon.com: OdorHog Vent Stack Pipe Filter 4 Sizes, Black ABS with Mushroom Cap, Removes Outdoor Septic and Sewer Odors (fits 1.5 or 2.0-inch) : Home & Kitchen Amazon.com: OdorHog Vent Stack Pipe Filter 4 Sizes, Black ABS with Mushroom Cap, Removes Outdoor Septic and Sewer Odors (fits 1.5 or 2.0-inch) : Home & Kitchen](https://m.media-amazon.com/images/I/615PzzTYRTL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: OdorHog Vent Stack Pipe Filter 4 Sizes, Black ABS with Mushroom Cap, Removes Outdoor Septic and Sewer Odors (fits 1.5 or 2.0-inch) : Home & Kitchen
![How To Repair a Broken Septic Pipe - Plumbing Perspective | News, Product Reviews, Videos, and Resources for today's contractors. How To Repair a Broken Septic Pipe - Plumbing Perspective | News, Product Reviews, Videos, and Resources for today's contractors.](https://plumbingperspective.com/wp-content/uploads/sites/3/2021/09/septic-system-design.jpg)
How To Repair a Broken Septic Pipe - Plumbing Perspective | News, Product Reviews, Videos, and Resources for today's contractors.
![Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com](https://mobileimages.lowes.com/productimages/ab601e1e-0ee7-41d8-8445-0fc526f176d6/64028366.jpg)
Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com
![Active Ventilation 4 in. Dia Aura PVC Vent Cap Exhaust with Adapter for Schedule 40 or Schedule 80 PVC Pipe in Black AV-4-PVC-BL - The Home Depot Active Ventilation 4 in. Dia Aura PVC Vent Cap Exhaust with Adapter for Schedule 40 or Schedule 80 PVC Pipe in Black AV-4-PVC-BL - The Home Depot](https://images.thdstatic.com/productImages/675bd26e-6d3c-4334-8b15-2ab8baa1758c/svn/black-active-ventilation-static-roof-vents-av-4-pvc-bl-76_600.jpg)
Active Ventilation 4 in. Dia Aura PVC Vent Cap Exhaust with Adapter for Schedule 40 or Schedule 80 PVC Pipe in Black AV-4-PVC-BL - The Home Depot
![Is this cap incorrect? Buying a new house and the Inspector said to remove it, but want to learn the 'why'. : r/Plumbing Is this cap incorrect? Buying a new house and the Inspector said to remove it, but want to learn the 'why'. : r/Plumbing](https://preview.redd.it/is-this-cap-incorrect-buying-a-new-house-and-the-inspector-v0-yehlewo3edbb1.jpg?width=1080&crop=smart&auto=webp&s=c5aad1c9ffc150576d0f889175ce74890f035975)
Is this cap incorrect? Buying a new house and the Inspector said to remove it, but want to learn the 'why'. : r/Plumbing
![Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com](https://mobileimages.lowes.com/productimages/94e2b4e5-14c2-4fd0-8696-985ad92ad8f0/47665009.jpg)
Oatey 3-in to 4-in x 4-in PVC Vent and Pipe Flashing in the Vent Pipe Flashing department at Lowes.com
![Purpose of septic vents both in the yard and also through the roof? - Home Improvement Stack Exchange Purpose of septic vents both in the yard and also through the roof? - Home Improvement Stack Exchange](https://i.stack.imgur.com/IzWId.png)