---
product_id: 19712591
title: "20297 Maxi-Filtra Septic Tank Drain Vent"
brand: "studor"
price: "R2909"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Studor"
url: https://www.desertcart.co.za/products/19712591-20297-maxi-filtra-septic-tank-drain-vent
store_origin: ZA
region: South Africa
---

# Active carbon odor filter Replaceable filter lasts 2 years Fits 3-4 inch piping 20297 Maxi-Filtra Septic Tank Drain Vent

**Brand:** studor
**Price:** R2909
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe easy, live fresher—ditch the stink with Maxi-Filtra!

## Quick Answers

- **What is this?** 20297 Maxi-Filtra Septic Tank Drain Vent by studor
- **How much does it cost?** R2909 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/19712591-20297-maxi-filtra-septic-tank-drain-vent)

## Best For

- studor enthusiasts

## Why This Product

- Trusted studor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Fit:** Compatible with 3- and 4-inch pipes for versatile installation
- • **Effortless Upgrade:** Retrofit existing plumbing without specialist help
- • **External Installation:** Install anywhere odors are a problem—no invasive plumbing required
- • **Odor-Free Environment:** Eliminates sewer gases to keep your space fresh and pollution-free
- • **Sustainable Freshness:** Replaceable carbon filter ensures up to 2 years of odor control

## Overview

The Studor 20297 Maxi-Filtra Septic Tank Drain Vent is a high-performance active carbon filter designed to eliminate unpleasant odors from septic tanks and lift stations. It fits standard 3- and 4-inch piping, installs externally without specialist tools, and features a replaceable carbon filter lasting up to two years. Ideal for retrofitting existing systems, it prevents sewer gases from entering buildings and polluting the environment, ensuring a fresher, healthier space.

## Description

desertcart.com: Studor 20297 Maxi-Filtra Septic Tank Drain Vent : Health & Household

Review: Brings back Backyard enjoyment! - The vent pipe from our sewer system often ruined our back yard experience. Once this filter was installed, no more stinky smells! With the removal of the rubber section on the bottom, this was a perfect fit for our septic vent pipe and was easy to install. Works perfectly!
Review: Absolutely the best stink deterrent ever - This small, discreet yet very well designed product is a nose saver. We have a 39’ park model 5th wheel and put this in our main line clean out it made the biggest difference no more smells. If you own a bumper pull, gooseneck, or 5th wheel trailer and park it for the year hooked up or just glamping either way if there is a sewer clean out get this. The smell will be gone in an hour or 2, the only thing you will smell is what was lofting in the air before the install of this carbon filter. I honestly did not have high hopes for this but my expectations were exceeded with the quality and performance of this product.

## Features

- Active carbon filter designed to eliminate bad odors produced by the drainage system
- Designed for use on septic tanks and lift stations; fits 3- or 4-inch piping
- Eliminates sewer gases from entering buildings and polluting the surrounding areas (when used as part of the complete Studor System); includes replaceable carbon filter (maximum life of 2 years) to remove bad odors and a rubber connecter
- Install externally anywhere the odor from existing vents presents a problem; no specialist installation required
- Can be retrofitted to existing plumbing systems (if all design and installation criteria are met); can also be used for buildings connected to main sewer line in some cases (contact Studor technical department to determine installation feasibility)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FQEX1ZG |
| Best Sellers Rank | #135,010 in Health & Household ( See Top 100 in Health & Household ) #67 in Septic Tank Treatments |
| Brand | Studor |
| Brand Name | Studor |
| Connector Type | Slip |
| Customer Reviews | 4.4 out of 5 stars 479 Reviews |
| Exterior Finish | Rubber |
| Global Trade Identification Number | 00764651202977 |
| Included Components | Instructional guide included |
| Inlet Connection Size | 3.5 inches |
| Inlet Connection Type | Slip |
| Item Dimensions | 3.5 x 3.5 x 6 inches |
| Item Weight | 0.27 g |
| Item dimensions L x W x H | 3.5 x 3.5 x 6 inches |
| Manufacturer | IPS Corporation |
| Manufacturer Part Number | 20297 |
| Material | Acrylonitrile Butadiene Styrene (ABS) , Rubber |
| Material Type | Acrylonitrile Butadiene Styrene (ABS), Rubber |
| Model Number | 20297 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 3.5 inches |
| Outlet Connection Type | NPT |
| Set Name | 3-inch and 4-inch |
| Size | 3-inch, 4-inch |
| Thread Size | 1.5 inches |
| Thread Type | NPT, None |
| UPC | 764651202977 |
| Valve Type | thermostatic |

## Product Details

- **Brand:** Studor
- **Exterior Finish:** Rubber
- **Inlet Connection Size:** 3.5 inches
- **Inlet Connection Type:** Slip
- **Item dimensions L x W x H:** 3.5 x 3.5 x 6 inches
- **Material:** Acrylonitrile Butadiene Styrene (ABS), Rubber
- **Number of Packs:** 1
- **Number of Ports:** 1
- **Outlet Connection Size:** 3.5 inches
- **Outlet Connection Type:** NPT

## Images

![20297 Maxi-Filtra Septic Tank Drain Vent - Image 1](https://m.media-amazon.com/images/I/71YsFBN7fWL.jpg)

## Questions & Answers

**Q: can it be mounted outside upside down?**
A: I believe this would allow water to sit inside it and affect it's capability to work properly. Also, if you live in a cold climate then it could freeze.

**Q: Is this an actual air admittance valve, or simply a charcoal filter?**
A: It's both a vent and a filter. I use it to keep rain and snow out of the venting system. The air comes out the bottom of the cap. Works fine for me.

**Q: Does this include the filter cartridge? Thanks**
A: Yes - it includes the filter.

**Q: Is it a 2’’ Studor vent?**
A: No, 4"

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brings back Backyard enjoyment!
*by N***E on June 25, 2025*

The vent pipe from our sewer system often ruined our back yard experience. Once this filter was installed, no more stinky smells! With the removal of the rubber section on the bottom, this was a perfect fit for our septic vent pipe and was easy to install. Works perfectly!

### ⭐⭐⭐⭐⭐ Absolutely the best stink deterrent ever
*by P***L on January 4, 2023*

This small, discreet yet very well designed product is a nose saver. We have a 39’ park model 5th wheel and put this in our main line clean out it made the biggest difference no more smells. If you own a bumper pull, gooseneck, or 5th wheel trailer and park it for the year hooked up or just glamping either way if there is a sewer clean out get this. The smell will be gone in an hour or 2, the only thing you will smell is what was lofting in the air before the install of this carbon filter. I honestly did not have high hopes for this but my expectations were exceeded with the quality and performance of this product.

### ⭐⭐⭐⭐ Holding tank- odor eliminator vent
*by L***A on May 27, 2024*

It was fine and easy. We are fairly mechanical inclined. So no problems there. Does it’s job. But those not so adept could use directions either on or in the box.

## Frequently Bought Together

- Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection
- Studor 20700 Maxi-Filtra ABS Air Admittance Valve Replacement Cartridge, Yellow/Black
- Studor 20398 Maxi-Cap for Maxi-Vent

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-30*