---
product_id: 1838465
title: "SteriPen SP-PF 40-Micron Pre-Filter for Wide-Mouth Bottles"
brand: "steripen"
price: "S$77"
currency: SGD
in_stock: true
reviews_count: 13
category: "Steri Pen"
url: https://www.desertcart.sg/products/1838465-steripen-sp-pf-40-micron-pre-filter-for-wide-mouth
store_origin: SG
region: Singapore
---

# extends SteriPen UV lamp life water-tight wide-mouth seal 40 micron sediment barrier SteriPen SP-PF 40-Micron Pre-Filter for Wide-Mouth Bottles

**Brand:** steripen
**Price:** S$77
**Availability:** ✅ In Stock

## Summary

> 💧 Filter First, Purify Fast — Stay Ahead of the Pack!

## Quick Answers

- **What is this?** SteriPen SP-PF 40-Micron Pre-Filter for Wide-Mouth Bottles by steripen
- **How much does it cost?** S$77 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/1838465-steripen-sp-pf-40-micron-pre-filter-for-wide-mouth)

## Best For

- steripen enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Light & Compact:** Weighs just 1.5 oz and fits easily in hydration sleeves or hip pockets—carry clean water without the bulk.
- • **Crystal Clear Hydration:** Robust 40x40 micron screen filters out sediment and particulates for pristine water clarity.
- • **Seamless Wide-Mouth Fit:** Screws securely onto wide-mouth bottles ensuring a leak-proof, water-tight seal every time.
- • **Adventure-Ready Reliability:** Designed for camping, hiking, travel, and emergency kits—trusted by outdoor pros worldwide.
- • **UV Purifier’s Best Friend:** Pre-filtering reduces strain on your SteriPen UV lamp, extending its lifespan and maintaining peak performance.

## Overview

The SteriPen SP-PF Pre-Filter is a lightweight, 40-micron sediment screen that screws onto wide-mouth bottles to remove debris before UV purification. Compatible with SteriPen Classic 3, Ultra, and Aqua models, it ensures cleaner water, extends UV lamp life, and delivers reliable, chemical-free water treatment for outdoor enthusiasts and emergency preparedness.

## Description

desertcart.com The SteriPen Pre-Filter is designed to filter out particulates and sediment from your water before you apply the UV purifier. Designed for use with wide-mouth water bottles, the Pre-Filter has a 4x4-micron filter screen that sifts sediment and small particulate matter out of the water. The screen is held within a cartridge with an air vent at the top and allows for either pour through or immersion methods to filter the water. Once the water is cleared, the water purification process employed by the SteriPen UV water purifier will be more effective.About SteriPen Ultraviolet (UV) Water Treatment: The ultraviolet (UV) water treatment method has now been used for over one hundred years, and is currently used to purify drinking water by some of the largest cities in North America, Europe, and Asia, including Seattle, Washington and Tempe, Arizona. Ultra violet light is also used by bottled water manufacturers to purify their source water. The EPA officially recognized the use of UV water treatment as a proven, viable technology in 1996. In a simple but effective process, UV purification destroys over 99.9 percent of harmful microorganisms in drinking water. The UV energy emitted by the light is absorbed by the cells within potentially harmful microbes. The UV energy breaks down the cells' ability to reproduce DNA--making it impossible for them to reproduce and make you sick. Thousands of outdoor enthusiasts all over the world have trusted SteriPen for many years. Introduced to hikers and campers at REI in 1999, Time Magazine named the SteriPen one of the "Best Inventions of the Year" in 2001. SteriPen's speed, effectiveness, and portability have impressed end users and media alike. Backpacker Magazine, Newsweek, and the Today Show have featured SteriPen as a powerful, user-friendly alternative to pumps, chemicals, and filters. SteriPen products have been tested by the Water Quality Association (WQA) against the US EPA Microbiological Water Purifier Standard. SteriPen has received the WQA's Gold Seal, certifying that SteriPen purifies water safely and effectively. Product Description The SteriPen SP-PF Pre-Filter screws onto wide-mouth water bottles and forms a water-tight seal so your SteriPen UV purifier can do its job without battling silt. A robust 40 x 40 micron screen cartridge effectively removes particulates and sediment from your water source, leaving cleaner water for safer UV purification. The SP-PF weighs just 1.5 ounces and measures 2.6 x 1.85 inches, so it adds almost zero bulk to your pack and tucks easily into a hip pocket, hydration sleeve, or bug-out bag. Designed to work seamlessly with the SteriPen Classic 3, SteriPen Ultra, and SteriPen Aqua water purifiers. Pre-filtering also reduces the load on your SteriPen UV lamp, which extends its lifespan and maintains optimal performance on long trips. Built for camping, hiking, international travel, and emergency preparedness.

Review: Amazing Product! - Over the last several years, I've been using a small, ceramic pump, but it finally clogged up and I decided to throw it out. However, I still had my SteriPen Traveler that I bought in 2016 when I traveled to Kenya. I never used the pen, even on my trips to the Boundary Waters. Instead of buying the MSR Guardian, which I thought would solve all my problems, I went with the much less expensive option of using my never-used SteriPen after finding this Pre-Filter that perfectly seals around my Nalgene. I used it this past summer in the Boundary Waters and it kept nearly all the sediment out, and it allowed me to still use my wide-mouth bottle while making it extremely easy and efficient to sterilize the water. After a while the filter can start clogging with sand and other debris, but i've been able to back wash it to get most of it out. Don't get me wrong, I love my gravity filters, but if you need 1.5 liters of water in 2 minutes, this is the product to buy!
Review: Easy to use pre-filter for steripen - Perfectly fits a standard wide mouth nalgene water bottle and works well to filter out sediment from water before treatment. Rubber gasket ensure no contaminated water reaches the inside of threads on your bottle. But do not forget that your nalgene cap isn't protected so don't accidentally submerge that unless you're ready to clean or sanitize the cap. If air vent is removed and flipped upside down into storage/transport position, a standard cap has enough reach to screw on top and keep the whole unit as one with less chance of losing during storage or transport. This is my go to setup with a steripen for camping or kayaking so I do not have to pack a lot of extra water. With everything attached, nalgene and pre-filter will fit into most water bottle pouches. I recommend this product!

## Features

- 98% plastic, 2% glass
- Made in the USA or Imported
- PRE-FILTER FOR YOUR STERIPEN UV WATER PURIFIER: The SP-PF screws onto wide-mouth bottles and forms a water-tight seal so UV light can do its job without battling silt. Built for camping, hiking, travel, and emergency preparedness.
- REMOVES PARTICULATES AND SEDIMENT FROM SOURCE WATER: A robust 40 x 40 micron screen cartridge filters debris and sediment from streams, lakes, and tap sources before treatment, giving you clearer water for safer UV purification.
- EXTENDS THE LIFE OF YOUR STERIPEN PURIFIER: By pre-filtering your water, this device reduces the load on your SteriPen UV lamp and extends its lifespan. A simple add-on that maintains performance for long-term reliability on multi-day trips.
- ATTACH POUR AND TREAT: Screw the SP-PF onto your wide-mouth water bottle or hydration pack opening, pour source water through the 40 micron screen, then activate your SteriPen Classic 3, Ultra, or Aqua to UV treat the filtered water.
- TRUSTED STERIPEN UV TECHNOLOGY: SteriPen UV technology delivers safe drinking water in 48 seconds without chemicals or bottles. The trusted standard for water treatment for travel, outdoor activities, and emergency preparedness.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000PGYDU2 |
| Best Sellers Rank | #224,951 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #265 in Camping & Hiking Water Filters |
| Brand | SteriPen |
| Brand Name | SteriPen |
| Capacity | 2 pounds |
| Container Type | Bottle |
| Customer Reviews | 4.4 out of 5 stars 191 Reviews |
| Global Trade Identification Number | 00899321000031 |
| Included Components | 1 SteriPen SP-PF Pre-Filter with 40x40 micron screen cartridge (bottle sold sep) |
| Installation Type | Countertop |
| Item Dimensions L x W x H | 1.97"L x 1.97"W x 2.76"H |
| Item Type Name | Pre-Filter |
| Item Weight | 1.4 ounces |
| Manufacturer | Katadyn |
| Material | Synthetic |
| Material Type | Synthetic |
| Model Name | SP-PF |
| Model Number | SP-PF |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | 40 Micron Screen Cartridge, Water-Tight Seal, Fits Wide-Mouth Bottles, Compatible with SteriPen Classic 3, Ultra, and Aqua, 1.5 oz, 2.6 x 1.85 inch |
| Part Number | SP-PF |
| Power Source | Non Electric |
| Product Dimensions | 1.97"L x 1.97"W x 2.76"H |
| Purification Method | Ultraviolet |
| Special Feature | 40 Micron Screen Cartridge, Water-Tight Seal, Fits Wide-Mouth Bottles, Compatible with SteriPen Classic 3, Ultra, and Aqua, 1.5 oz, 2.6 x 1.85 inch Special Feature 40 Micron Screen Cartridge, Water-Tight Seal, Fits Wide-Mouth Bottles, Compatible with SteriPen Classic 3, Ultra, and Aqua, 1.5 oz, 2.6 x 1.85 inch See more |
| Supported Water TDS Level Maximum (PPM) | 500 |
| UPC | 400101365914 701001538171 899321000031 758570829834 700999882495 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 °C |

## Images

![SteriPen SP-PF 40-Micron Pre-Filter for Wide-Mouth Bottles - Image 1](https://m.media-amazon.com/images/I/612pW6nqPtL.jpg)
![SteriPen SP-PF 40-Micron Pre-Filter for Wide-Mouth Bottles - Image 2](https://m.media-amazon.com/images/I/71NvLtjmDEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing Product!
*by E***C on December 14, 2021*

Over the last several years, I've been using a small, ceramic pump, but it finally clogged up and I decided to throw it out. However, I still had my SteriPen Traveler that I bought in 2016 when I traveled to Kenya. I never used the pen, even on my trips to the Boundary Waters. Instead of buying the MSR Guardian, which I thought would solve all my problems, I went with the much less expensive option of using my never-used SteriPen after finding this Pre-Filter that perfectly seals around my Nalgene. I used it this past summer in the Boundary Waters and it kept nearly all the sediment out, and it allowed me to still use my wide-mouth bottle while making it extremely easy and efficient to sterilize the water. After a while the filter can start clogging with sand and other debris, but i've been able to back wash it to get most of it out. Don't get me wrong, I love my gravity filters, but if you need 1.5 liters of water in 2 minutes, this is the product to buy!

### ⭐⭐⭐⭐⭐ Easy to use pre-filter for steripen
*by N***N on June 20, 2019*

Perfectly fits a standard wide mouth nalgene water bottle and works well to filter out sediment from water before treatment. Rubber gasket ensure no contaminated water reaches the inside of threads on your bottle. But do not forget that your nalgene cap isn't protected so don't accidentally submerge that unless you're ready to clean or sanitize the cap. If air vent is removed and flipped upside down into storage/transport position, a standard cap has enough reach to screw on top and keep the whole unit as one with less chance of losing during storage or transport. This is my go to setup with a steripen for camping or kayaking so I do not have to pack a lot of extra water. With everything attached, nalgene and pre-filter will fit into most water bottle pouches. I recommend this product!

### ⭐⭐⭐⭐ A good workable option if used correctly
*by B***E on March 21, 2018*

If you use this as instructed, and you bear in mind that it’s not a sub micron filter, then this is a useful addition to the steripen. If the water you intend to sterilise is cloudy, if possible collect the water in a container and allow the sediment to settle. Then pour the clearer water through the prefilter making sure the air valve is open. If you bottle fill from a stream, pre wet the filter and reinstall it, then open the valve and submerge the bottle up to the air valve...I leave half the valve under water and half above to get things started, then you can position it to get the maximum flow by observing the bubbles. It’s not fast, but it’s doable. Naturally, if you were pumping the water in through a Katadyn or MSR it will be much faster, and I usually have my Katadyn Pocket at hand. But if you don’t want to pack your high spec filter, this prefilter gives you a workable option, albeit slower.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-08-17*