---
product_id: 42812591
title: "Laguna PF4000 36W Pressure Flo Filter"
brand: "laguna"
price: "S$1014"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/42812591-laguna-pf4000-36w-pressure-flo-filter
store_origin: SG
region: Singapore
---

# 36W energy-efficient UV bulb Patented Backwash Cleaning System 3-step filtration: mechanical, biological, UV Laguna PF4000 36W Pressure Flo Filter

**Brand:** laguna
**Price:** S$1014
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your pond game with Laguna’s powerhouse filtration—because your water deserves the best!

## Quick Answers

- **What is this?** Laguna PF4000 36W Pressure Flo Filter by laguna
- **How much does it cost?** S$1014 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/42812591-laguna-pf4000-36w-pressure-flo-filter)

## Best For

- laguna enthusiasts

## Why This Product

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

## Key Features

- • **Robust European Build:** Premium construction ensures durability and long-lasting performance in ponds up to 4000 gallons.
- • **Seamless Pump Pairing:** Optimized to work with Laguna Max-Flo pumps for ultimate filtration synergy and pond health.
- • **Triple-Action Clarity:** Mechanical, biological, and UV filtration combine for crystal-clear pond water.
- • **Effortless Maintenance:** Ergonomic grips and permanently attached screws make upkeep a breeze—never lose parts again.
- • **Powerful UV Protection:** New four-prong 36W UV bulbs deliver superior green water elimination and prevention.

## Overview

The Laguna PF4000 36W Pressure Flo Filter is a premium pond filtration system designed for ponds up to 4000 gallons. It features a 3-step filtration process combining mechanical foam pads, biological Bio-Lava rock media, and a powerful 36-watt UV lamp to eliminate green water and maintain crystal-clear conditions. Enhanced with a patented Backwash Cleaning System and ergonomic design improvements, it simplifies maintenance while delivering robust, energy-efficient performance. Ideal when paired with Laguna Max-Flo pumps, it ensures optimal water clarity and pond health.

## Description

Laguna PF4000 36W Pressure Flo Filter

## Features

- Features: 3 Step Filtration System: Mechanical, biological and integrated UV filtration work in unison to provide clean and clear pond water
- New Energy efficient UV bulbs. New four prong bulbs are simple to install and provide powerful UV clarification to prevent and eliminate green water
- Premium European Construction and Patented Backwash Cleaning System
- Combine with a Laguna Max-Flo pump for the ultimate combination in filtration and performance
- Pressure-Flo 4000 UVC is for ponds up to 4000 gallons and comes complete with a 36-watt UV lamp, 5 filter foams and 4800 g of Bio-Lava Rock

## Images

![Laguna PF4000 36W Pressure Flo Filter - Image 1](https://m.media-amazon.com/images/I/71S8GYd6oKL.jpg)
![Laguna PF4000 36W Pressure Flo Filter - Image 2](https://m.media-amazon.com/images/I/81DQi21uv7L.jpg)
![Laguna PF4000 36W Pressure Flo Filter - Image 3](https://m.media-amazon.com/images/I/81ay5QsfcJL.jpg)
![Laguna PF4000 36W Pressure Flo Filter - Image 4](https://m.media-amazon.com/images/I/81OZ1v8R1-L.jpg)
![Laguna PF4000 36W Pressure Flo Filter - Image 5](https://m.media-amazon.com/images/I/81HbqBy498L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by D***. on November 15, 2023*

Bought this to replace a old PF 700 filter that finally failed. The new one is also well made and well designed and improved in several small ways. The filter is effective, it is a bit easier to work the cleaning handles, and the UV indicator light is easier to see. Recommended.

### ⭐⭐⭐⭐⭐ Amazing!
*by L***A on June 12, 2021*

I bought a house with a koi pond, I had no idea how maintain it so I spent two years trying to figure out how to get the water to look crystal clear and nothing worked - I was ready to give up on it so basically this filter was my last hope. When I installed it the water was thick green full of algae and dirt, in three days of having the full filtration on I could already see my fish and about a foot in the water - within two weeks my water was crystal clear and now is pride and joy of my background. This product is absolutely amazing, I had to write a review and tell my story! Oh and the backwash OMG super. Easy, takes me 5 minutes. A must buy!!!!! Buy it, buy it, buy it!!!!

### ⭐⭐⭐⭐⭐ Awesome!
*by B***M on June 19, 2025*

I was skeptical about buying this filter for our koi pond but knew i needed something. All I can say is WOW.. what a difference - even over night! I clean it out at least once a month (it has 5 sponge filters and 'lava-like' rocks for the bottom. I've had it for about 2 months now, and it's still doing an amazing job! Easy to install, clears the water, design is easy to open & clean.

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**Shop now:** [https://www.desertcart.sg/products/42812591-laguna-pf4000-36w-pressure-flo-filter](https://www.desertcart.sg/products/42812591-laguna-pf4000-36w-pressure-flo-filter)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-02*