---
product_id: 27072587
title: "Sys II Pre-Filters"
brand: "seaclear"
price: "$17.17"
currency: USD
in_stock: true
reviews_count: 3
url: https://www.desertcart.ec/products/27072587-sys-ii-pre-filters
store_origin: EC
region: Ecuador
---

# Compatible with 16" & 20" models 12-pack bulk value Enhances filtration efficiency Sys II Pre-Filters

**Brand:** seaclear
**Price:** $17.17
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your aquarium crystal clear with effortless pre-filtration!

## Quick Answers

- **What is this?** Sys II Pre-Filters by seaclear
- **How much does it cost?** $17.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/27072587-sys-ii-pre-filters)

## Best For

- seaclear enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Designed for all 16" and 20" Sea Clear System II models
- • **Bulk Pack Power:** 12 pre-filters to keep your aquarium pristine longer
- • **Easy Maintenance:** Quick replacement keeps your aquatic environment healthy with minimal effort
- • **Optimized Clarity:** Pre-filters trap debris before main filtration for crystal-clear water
- • **Trusted Compatibility:** Casco Group engineered for seamless integration with Sea Clear filters

## Overview

The Sys II Pre-Filters by Casco Group come in a convenient 12-pack, designed specifically for Sea Clear System II aquarium filters in 16" and 20" sizes. These pre-filters enhance overall filtration by capturing debris early, ensuring cleaner water and healthier aquatic life.

## Description

12 pack of Sea Clear Sys II Pre-filters for all 16 and 20" " models.

## Features

- Casco group
- Sea Clear
- System II
- Prefilter
- filter 20

## Product Details

- **Brand:** SeaClear
- **Coating Description:** Multi Coating
- **Photo Filter Effect Type:** Neutral Density
- **Water Resistance Level:** Not Water Resistant
- **UPC:** 019034920222

## Images

![Sys II Pre-Filters - Image 1](https://m.media-amazon.com/images/I/31S6yDUI9KL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    A Great Product - Thoughtfully Designed
  

*by J***L on Reviewed in the United States on June 22, 2018*

I am writing to provide positive feedback about these pre-filters. I have been using them since purchasing my Sea Clear aquarium over two years ago. They keep the water absolutely, perfectly crystal clear. The only drawback is that once dirty, they must be cleaned or else the filter will not work properly. I find that they get clogged sometime between 7 - 12 days. The best (easiest and most efficient) way to clean them is to put them through your washing machine, set on small load and hot water; obviously do NOT use detergent or cleaning chemicals of any kind. The force of the machine will wash them completely, and the spin dry cycle will dry them out about 95%. In this way, I can re-use the filters anywhere from 6 -10 times. This means that they are really quite economical, because you have to measure the cost of the filter vs. the time they last. I strongly recommend these pre-filters as well as the Sea Clear System II overall. I could not be happier!

### ⭐ 1.0 out of 5 stars







  
  
    One Star
  

*by J***H on Reviewed in the United States on April 7, 2018*

Don't buy a Sea Clear tank, because you cannot find pre-filter that fit correctly. Replacement parts are non-existent.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Something is fishy!
  

*by M***S on Reviewed in the United States on July 10, 2015*

I am a Sea Clear Bowfront Acrylic tank owner. I have used these pre-filters for years, but upon purchasing these particular ones on Amazon a couple times, I am positive that the material is much thinner than they used to be. They become clogged faster, too. Are these really from Casco? Is the economy that bad that they are being made much thinner at the same cost? It's still the same expensive price. I feel like I could go to Hobby Lobby and make my own pre-filters with material they sell at a much cheaper cost. Something is fishy here. No pun intended.

---

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---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-04-01*