---
product_id: 21569282
title: "Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5\" x 20\""
brand: "pentek"
price: "S$30"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/21569282-bag-filter-155384-bp-420-1-polypropylene-1-micron-4
store_origin: SG
region: Singapore
---

# 1 micron ultrafiltration precision High temperature resistance Chemical-resistant polypropylene Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20"

**Brand:** pentek
**Price:** S$30
**Availability:** ✅ In Stock

## Summary

> 🌀 Filter like a pro — precision and durability in one sleek package!

## Quick Answers

- **What is this?** Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" by pentek
- **How much does it cost?** S$30 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/21569282-bag-filter-155384-bp-420-1-polypropylene-1-micron-4)

## Best For

- pentek enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Size:** Standard 4.5" x 20" fits most industrial filtration systems for easy integration
- • **Thermal Durability:** Operates reliably under high-temperature conditions to keep your process seamless
- • **Ultra-Fine Filtration:** Captures particles as small as 1 micron for pristine fluid clarity
- • **Chemical Compatibility:** Engineered to handle both acidic and alkaline fluids without degradation
- • **High Dirt-Holding Capacity:** Felt media design maximizes filtration lifespan, reducing maintenance frequency

## Overview

The BP-420-1 Bag Filter features a 1 micron polypropylene felt media that delivers ultra-fine filtration with exceptional chemical and thermal resistance. Sized at 4.5" x 20", it offers high dirt-holding capacity and compatibility with a broad spectrum of corrosive fluids, making it ideal for demanding industrial applications.

## Description

Full description not available

## Features

- 1 micron ultrafiltration
- Compatible with a wide range of acidic and alkaline fluids, and other corrosives
- Withstands high temperatures
- Manufactured with felt media for high dirt-holding capacity

## Images

![Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" - Image 1](https://m.media-amazon.com/images/I/61sMmcOOO0L.jpg)
![Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" - Image 2](https://m.media-amazon.com/images/I/71ZZBSPbwML.jpg)

## Questions & Answers

**Q: Has anybody tried using this with a Venturi style pool vacuum? If so, how well did it work?**
A: I found that these bags work every bit as well as the more expensive ones that our plumbing sub sold us. I will definitely reorder them.

**Q: if you pour water into this how long does it take to drain with just gravity?**
A: Don't know, we pump the water thru it with a pump. I think it would flow right it, with just gravity. A great filter.

**Q: Is this bag "food grade"**
A: Yes it is by definition of “Food Grade”

**Q: Can this be used to filter cold brew coffee?**
A: Not sure. Its ised to filter sediments from water so I'm mot sire why not. But I would think it is for cold water only.

## Frequently Bought Together

- Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20"
- Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)
- Pentek BP-420-5 Polypropylene Bag Filter

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**Shop now:** [https://www.desertcart.sg/products/21569282-bag-filter-155384-bp-420-1-polypropylene-1-micron-4](https://www.desertcart.sg/products/21569282-bag-filter-155384-bp-420-1-polypropylene-1-micron-4)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*