---
product_id: 471267556
title: "Uni Filter BF1 12\" X 16\" X 5/8\" 65-PPI Green Fine Foam"
brand: "4into1"
price: "€ 101.09"
currency: EUR
in_stock: false
reviews_count: 5
category: "4into1"
url: https://www.desertcart.it/products/471267556-uni-filter-bf1-12-x-16-x-5-8-65
store_origin: IT
region: Italy
---

# 12" x 16" x 5/8" versatile sheet size 65 PPI fine foam for superior filtration Hi-flow design ensures excellent airflow Uni Filter BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam

**Brand:** 4into1
**Price:** € 101.09
**Availability:** ❌ Out of Stock

## Summary

> 🟩 Elevate your engine’s breathability with precision foam filtration!

## Quick Answers

- **What is this?** Uni Filter BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam by 4into1
- **How much does it cost?** € 101.09 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/471267556-uni-filter-bf1-12-x-16-x-5-8-65)

## Best For

- 4into1 enthusiasts

## Why This Product

- Trusted 4into1 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Green Foam:** Made from premium polyurethane foam for long-lasting performance
- • **Precision Filtration Power:** 65 pores per inch trap dirt without choking airflow
- • **Customizable Fit for Any Ride:** Cut and shape to your exact needs—perfect for vintage and modern engines alike
- • **Engineered for Maximum Airflow:** Optimized open-cell structure keeps your engine breathing easy
- • **Ready to Use, No Assembly Needed:** Sold per sheet, instantly upgrade your filtration game

## Overview

The Uni Filter BF1 is a 12" x 16" x 5/8" green fine foam sheet featuring 65 pores per inch for superior dirt and dust filtration while maintaining excellent airflow. Made from durable polyurethane foam, it’s designed for custom applications and sold per sheet, making it ideal for restoring or upgrading air filters on motorcycles, ATVs, and other vehicles. Trusted by enthusiasts for its quality and versatility, this foam ensures your engine stays protected and performs at its best.

## Description

Uni filter ATV air filters keep out all the dirt, dust, and mud providing superior engine protection. The principle of how foam air filters work is simple, open cell polyurethane foam is wetted with specially developed filter oil. The sticky filter oil.

Review: I am happy with the product. The quality is great and the shipping was fast, it worked perfectly for my 40 year old motorcycle. There was enough to make 3 air filters. 👍👍
Review: good OEM style foam to rebuild steel cage filters with!

## Features

- Hi-Flow Green Filter Foam Sheet
- 12 Inches x 16 Inches x 5/8 Inch
- Unlimited Potential for Use in Custom Applications
- Excellent Air Flow and Filtration
- Sold Per Sheet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000ONZT5E |
| Assembly Required | No |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #428,060 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #1,394 in Motorcycle & ATV Air Filters |
| Brand | 4into1 |
| Colour | Green |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (746) |
| Date First Available | 7 August 2012 |
| Global Trade Identification Number | 00804451070335 |
| Item Weight | 22.7 g |
| Item model number | BF-1 |
| Manufacturer | Uni Filter |
| Manufacturer Part Number | 82-0001 |
| Material | Foam |
| Model | Bulk Fine Foam Filter (65 PPI) - 12in. x |
| Net Quantity | 1.0 Count |
| OEM Part Number | BF-1 |
| Product Dimensions | 40.6L x 30.5W x 1.5H Centimeters |
| UPC | 804451070335 |
| Volume | 112 Cubic Inches |

## Product Details

- **Brand:** 4into1
- **Fit Type:** Vehicle Specific Fit
- **OEM Part Number:** BF-1
- **Product Dimensions:** 40.6L x 30.5W x 1.5H Centimeters
- **Product Grade:** Tuning

## Images

![Uni Filter BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam - Image 1](https://m.media-amazon.com/images/I/416KTJGQ-VL.jpg)
![Uni Filter BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam - Image 2](https://m.media-amazon.com/images/I/91ZLhKILzXL.jpg)

## Questions & Answers

**Q: what adhesive is best for creating motorycle air filters?**
A: I use brushed on contact cement for the initial adhesion, then put a bead of silicone all around the seam, about 1/2 inch wide both inside and out.  I do not trust just the contact cement to hold foam together long term, but it works great to hold the two ends together while the stronger silicone has a chance to cure.  I do not glue the foam to the metal frame.  I simply glue the foam together and slide it over whatever filter frame you are using.

**Q: I have a Honda gyro scooter, the old filter looks to be about 3/8 to 1/2 inch thick, will this be too thick for it?**
A: It is made from foam and will squish to make it fit.  I put this foam in my cars to be a pre-cleaner to keep the paper air filter super clean.  It works  exceptionally  well.  The fit is a little tight sometimes,  because space under the bottom of a flat type air filter can be limited. But,  the foam sheet is soft enough to squish down underneath and work just fine.  Most of the time I can only use 1 layer of foam.  Once I tried to roll it up in a ball and stuff it into a round tube intake hose that led to the air filter itself.  The multiple layers in the ball caused a check engine light to come on with an "intake restriction"  code. So I took it out and just left the flat piece of foam in the air filter box. I also put some air filter oil massaged into the foam.  It  helps collect fine dust,  and you wash it out and re oil it about every 20k miles. This keeps the paper flat filter clean as new for 50k miles or more.  I went 100k miles in an old 1990 big Chevy Van and the paper filter stayed completely clean.  I used foam over the air cleaners in all my tractors and dirt bikes and motorcycles.  The paper filters were useless without the foam covers. The foam ones on the bikes would never plug up,  even when they were covered with mud and dust. It has to do with the foam flexibility and larger pores in the foam and thicker layer of foam than the thin layer of paper.  When you use foam,  the engine will run cleaner and last longer, due to fewer bits of abrasive dust  grinding away pistons and cylinders.  Combine that by using Mobil 1 synthetic oil and changing it every 3000 miles,  and your car will last for 300,000 miles.  I ran an Acura Integra 300,000 rough miles doing that,  and then sold it for $700 because it still ran like new!

**Q: will this work on weber carbs**
A: I used it on a snowmobile air intake. We cut to fit. Works good. 
I don't know about Weber carbs, sorry.

**Q: Would this foam filter matierial work well in regular vehicles? Using on an inline 2.0L turbo.**
A: I think it would work well assuming it fits snug.  Please note it needs to be oiled to provide proper filtration.  My application was for a mower.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***E on 9 June 2024*

I am happy with the product. The quality is great and the shipping was fast, it worked perfectly for my 40 year old motorcycle. There was enough to make 3 air filters. 👍👍

### ⭐⭐⭐⭐⭐ Review
*by A***R on 31 October 2025*

good OEM style foam to rebuild steel cage filters with!

### ⭐⭐⭐⭐⭐ Review
*by A***R on 21 May 2020*

Bought it for my motorcycle to replace the original paper filter. Cut it to shape but haven't installed yet as I'm waiting for my paper filter to get a bit dirtier before switching over, but the foam seems to be of great quality! I think it will definitely help my engine filter better with a good foam oil.

## Frequently Bought Together

- Uni Filter - BF-1 BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam
- UNI Filter Foam Filter Oil (1)
- UNI Universal Filter Foam - 12" x 24" x 3/8" - Black

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-27*