---
product_id: 48531999
title: "Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection"
brand: "studor"
price: "S$141"
currency: SGD
in_stock: true
category: "Studor"
url: https://www.desertcart.sg/products/48531999-studor-20297-maxi-filtra-septic-tank-drain-vent-two-way
store_origin: SG
region: Singapore
---

# Eliminates sewer gases & odors Replaceable carbon filter lasts 2 years Fits 3- or 4-inch piping Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection

**Brand:** studor
**Price:** S$141
**Availability:** ✅ In Stock

## Summary

> ♻️ Breathe easy, live fresh — the ultimate septic vent upgrade!

## Quick Answers

- **What is this?** Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection by studor
- **How much does it cost?** S$141 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/48531999-studor-20297-maxi-filtra-septic-tank-drain-vent-two-way)

## 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:** Designed for 3- or 4-inch pipes, easily retrofits existing septic or sewer systems without hassle.
- • **Certified Quality:** Meets CSA, IAPMO, and ULC standards ensuring reliable, long-lasting performance.
- • **Odor-Free Environment:** Active carbon filter neutralizes septic tank odors, keeping your space fresh and inviting.
- • **Simple DIY Installation:** No specialist needed—install externally wherever odors are a problem for instant relief.
- • **Eco-Friendly & Efficient:** Replaceable filter lasts up to 2 years, reducing waste and maintenance frequency.

## Overview

The Studor 20297 Maxi-Filtra is a bi-directional active carbon filter designed to eliminate unpleasant odors from septic tanks and lift stations. Compatible with 3- or 4-inch piping, it installs externally without specialist help and features a replaceable carbon filter lasting up to 2 years. Certified to CSA, IAPMO, and ULC standards, it ensures a cleaner, odor-free environment while fitting seamlessly into existing plumbing systems.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

## 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 | 12,013 in Garden ( See Top 100 in Garden ) 27 in Garden Drainage |
| Brand | Studor |
| Connector Type | Slip |
| Customer Reviews | 4.5 4.5 out of 5 stars (478) |
| Exterior Finish | Rubber |
| Global Trade Identification Number | 00764651202977 |
| Included Components | Instructional guide included |
| Inlet Connection Size | 3.5 Inches |
| Inlet Connection Type | Threaded |
| Item Dimensions | 8.9 x 8.9 x 15.2 centimetres |
| Item Weight | 0.01 Ounces |
| Manufacturer | IPS Corporation |
| Material | Acrylonitrile Butadiene Styrene 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 | 7 or 10 cm |
| Part Number | 20297 |
| Set Name | Maxi-Filtra |
| Size | 5.25 x 4.875 inches |
| Specification Met | CSA, IAPMO, ULC |
| Thread Size | 1.5 inches |
| Thread Type | NPT |
| UPC | 764651202977 |
| Valve Type | Bi-Directional Active Carbon Filter Valve |

## Product Details

- **Brand:** Studor
- **Exterior finish:** Rubber
- **Inlet connection size:** 3.5 Inches
- **Inlet connection type:** Threaded
- **Item dimensions L x W x H:** 8.9 x 8.9 x 15.2 centimetres
- **Material:** Acrylonitrile Butadiene Styrene Rubber
- **Number of ports:** 1
- **Outlet connection size:** 3.5 Inches
- **Outlet connection type:** 7 or 10 cm
- **Specification met:** CSA, IAPMO, ULC

## Images

![Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection - Image 1](https://m.media-amazon.com/images/I/71YsFBN7fWL.jpg)
![Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection - Image 2](https://m.media-amazon.com/images/I/41dysl1XKwL.jpg)
![Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection - Image 3](https://m.media-amazon.com/images/I/41aub5SU9rL.jpg)
![Studor 20297 Maxi-Filtra Septic Tank Drain Vent Two-Way Active Carbon Filter, 3- or 4-Inch Connection - Image 4](https://m.media-amazon.com/images/I/41YGhedm+CL.jpg)

## Questions & Answers

**Q: We have two holes in our old concrete septic tank for vents. Will this product be the best for both? Do we need an air admittance valve either/ or?**
A: Provided the two holes are at the top of the septic tank and they will accommodate a pipe of a diameter specified in the product description, you should not have any problem fitting the product to one or both of the vent holes. As the Studor Maxi-Filtra is a two way vent I cannot see the need for an air admittance valve. Hope this helps.

**Q: Could this be fitted horizontally, onto an existing, rectangular opening vertical pipe I wonder...?**
A: I don't think it would as the unit is a round fitting.  I don't know how you could make a tight seal all around it and your existing rectangular pipe

**Q: Would this work on a cesspit vent pipe?**
A: Yes I think it should. We fitted ours to a vent pipe on the patio with the tanks beneath and works great!

**Q: Does this include the fittings for attachment to 100mm Vent pipe. The brochure on their website shows that fitting is possible, but is it included?**
A: The Studor Maxi Filtra will fit 75mm, 90mm and 110mm dia pipe, fitting is included.

## 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 Singapore*
*Store origin: SG*
*Last updated: 2026-10-02*