---
product_id: 297085394
title: "Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 8-Feet, Plastic, Black"
brand: "flex-drain"
price: "฿3369"
currency: THB
in_stock: true
reviews_count: 1
url: https://www.desertcart.co.th/products/297085394-flex-drain-54021-flexible-expandable-landscaping-drain-pipe-solid-4
store_origin: TH
region: Thailand
---

# 14% better flow rate (perforated pipe) Expandable 2-8 ft length 30% higher load-bearing strength Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 8-Feet, Plastic, Black

**Brand:** flex-drain
**Price:** ฿3369
**Availability:** ✅ In Stock

## Summary

> 🚀 Flex your drainage game with Flex-Drain — built to bend, last, and outperform!

## Quick Answers

- **What is this?** Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 8-Feet, Plastic, Black by flex-drain
- **How much does it cost?** ฿3369 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/297085394-flex-drain-54021-flexible-expandable-landscaping-drain-pipe-solid-4)

## Best For

- flex-drain enthusiasts

## Why This Product

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

## Key Features

- • **Engineered for Endurance:** 30% higher load rating with patented peak & valley design for freeze-thaw resilience
- • **ASTM-Exceeding Durability:** Solid pipe construction beats brittleness and joint failure standards
- • **Space-Savvy Expandability:** Expands from 2 to 8 feet for custom fit and easy storage
- • **Superior Water Management:** 14% improved flow rate ensures efficient drainage and prevents backups
- • **Quick & Clean Installation:** Outperforms competitors with faster setup and 1/5th the storage footprint

## Overview

The Flex-Drain 54021 is a 4-inch by 8-foot solid plastic landscaping drain pipe that expands from 2 to 8 feet, offering superior durability and performance. Engineered with a patented peak and valley design, it boasts 30% higher load-bearing capacity and excels in freeze-thaw conditions. It delivers 14% better flow rate compared to standard perforated pipes and installs faster while requiring significantly less storage space, making it the smart choice for efficient, long-lasting water management.

## Description

Flex Drain 54021 4" X 8' Solid Flexible & Expandable Landscaping Drain Pipe

Review: Awesome - Ordered 2 works great.

## Features

- Advanced design for superior performance; solid pipe helps move water to a drain from your downspout diverter, rain gutter and more
- Exceeds the following ASTM standards, flex-drain outperforms the leading brand of corrugated pipe with brittleness, stiffness, and joint integrity
- Engineered to outperform, installs faster, requires 1/5th the storage and transport space, and perforated pipe has 14 percent better flow rate
- Outperforms in freeze and thaw conditions, also has 30-percent higher load-bearing rating from our patented peak and valley design
- Solid drain-pipe expands in length from 2 to 8-feet - compatible with most traditional 3-inches and 4-inches corrugated pipe and 4-inches pvc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004SHETCG |
| Best Sellers Rank | #200,906 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Pipes #2,094 in Industrial Pipe Fittings |
| Brand | Flex-Drain |
| Brand Name | Flex-Drain |
| Color | Black |
| Colour | Black |
| Customer Reviews | 3.4 out of 5 stars 3 Reviews |
| Global Trade Identification Number | 00732736540016 |
| Included Components | Amerimax - 54021 |
| Item Dimensions L x W | 2.44L x 0.1W Meters |
| Item Length | 8 Feet |
| Item Type Name | Amerimax - 54021 |
| Item Weight | 680 g |
| Item weight | 680 g |
| Manufacturer | Cleveland Tubing, Inc. |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Pressure | 4 Bars |
| Maximum pressure | 4 Bars |
| Nominal Wall Thickness | 0.125 inches |
| Outside Diameter | 10.16 Centimeters |
| Product dimensions | 2.44L x 0.1W Meters |
| UPC | 732736540016 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Flex-Drain
- **Colour:** Black
- **Item weight:** 1.5 Pounds
- **Material:** Plastic
- **Product dimensions:** 2.44L x 0.1W Meters

## Images

![Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 8-Feet, Plastic, Black - Image 1](https://m.media-amazon.com/images/I/61kcVfz0G7L.jpg)

## Questions & Answers

**Q: Is this pipe perforated?**
A: The description says perforated, I did not see that when I bought 10 of them last year.  They definitely ARE perforated but I didn’t figure that out until past the warranty.  It will let a lot of water out before it gets to where you want it.  Waste of money!!!

**Q: is this pipe designed to be buried underground?**
A: I have buried mine no more than a foot below surface.  Works great.

**Q: Is this UV rated?**
A: Black drain pipe is UV resistant, but not UV proof. This will probably last 3-5 years, if not longer, in full sunlight before it becomes brittle.

**Q: How to expand video?**
A: I have expanded it only by holding it in my hands and then pulling the compressions apart. For most men it requires what I would judge as 'medium' strength and exertion. It might be difficult for women though. I hope this response helps you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome
*by A***J on 6 May 2022*

Ordered 2 works great.

## Frequently Bought Together

- Flex-Drain 54021 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 8-Feet, Plastic, Black
- Flex-Drain 55020 Drain Pipe Coupler Adapter, Female to Female (2 Pack)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-20*