---
product_id: 93591982
title: "Polylok 18\" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC)"
brand: "polylok"
price: "$169.28"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/93591982-polylok-18-heavy-duty-cover-lid-for-corrugated-pipe-pn
store_origin: US
region: United States of America
---

# Airtight seal UV protection Heavy-duty design Polylok 18" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC)

**Brand:** polylok
**Price:** $169.28
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down with style!

## Quick Answers

- **What is this?** Polylok 18" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC) by polylok
- **How much does it cost?** $169.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/93591982-polylok-18-heavy-duty-cover-lid-for-corrugated-pipe-pn)

## Best For

- polylok enthusiasts

## Why This Product

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

## Key Features

- • **Perfect Fit:** Designed specifically for 18" corrugated or ribbed pipes, ensuring a snug and reliable fit.
- • **Secure Your Space:** Includes square drive screws to prevent unauthorized access, keeping your area safe.
- • **Ultimate Protection:** Features a skid-resistant surface and top-tier UV protection to withstand the elements.
- • **Unmatched Durability:** Crafted from High Density Polyethylene (HDPE) for long-lasting performance.
- • **Effortless Installation:** Comes with a foam gasket for an airtight and watertight seal, making setup a breeze.

## Overview

The Polylok 18" Heavy Duty Cover/Lid is engineered for 18" corrugated or ribbed pipes, featuring a robust design with a skid-resistant surface, superior UV protection, and a foam gasket for airtight sealing. It includes square drive screws for added security and is made from durable High Density Polyethylene (HDPE), ensuring longevity and reliability.

## Description

Polylok 18" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC)

## Features

- Fit's 18" corrugated or ribbed pipe. (Inside diameter: 17.30" / Outside diameter: 20.57")
- Skid resistance surface
- Highest level of UV Protection included
- Includes a foam gasket for airtight and watertight applications
- Includes square drive screws to discourage unauthorized entr
- Made of High Density Polyethylene (HDPE)
- Corrugated Pipe NOT included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | High Density Polyethylene |
| Color | Green |
| Brand | Polylok |
| Style | Compact |
| Product Dimensions | 21"L x 21"W |
| Item Weight | 1.8 Pounds |
| Shape | Round |
| Number of Pieces | 1 |
| Is Dishwasher Safe | No |
| Is Microwaveable | Yes |
| Manufacturer | Polylok |
| UPC | 762022552119 |
| Part Number | 3007-HDC |
| Item Weight | 1.8 pounds |
| Item model number | 3007-HDC |
| Is Discontinued By Manufacturer | No |
| Installation Method | Screw-In |
| Item Package Quantity | 1 |
| Maximum Weight Capacity | 1000 Pounds |
| Measurement System | inch |
| UV Protection | Highest level |
| Usage | Septic Cover |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** High Density Polyethylene
- **Color:** Green
- **Brand:** Polylok
- **Style:** Compact
- **Product Dimensions:** 21"L x 21"W

## Images

![Polylok 18" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC) - Image 1](https://m.media-amazon.com/images/I/71Ktj-ylUbL.jpg)

## Questions & Answers

**Q: Does this fit 18 inch hdpe pipe ?**
A: Yes.

**Q: To get a good seal, when cutting my 18 corrugated pipe: Do I need to cut @ the outside or inside of corrugation? or does it not matter?**
A: Not exactly sure what is meant by the inside or outside of the corrugation, but you want to cut the pipe as straight as possible to have the best seal with the lid.

**Q: Are these flat Like other sizes also?**
A: I believe you could call it flat. Around the rim are holes for hold down screws. I used a few but I don't think they are necessary. My cover is 6" down and I have driven my tractor over the top soil many times,so it is durable.

**Q: Will this fit a norwesco 24 in by 20 in manhole extension?**
A: This cover is designed to fit corrugated pipe with an inside diameter of 18". I would recommend looking at the technical drawing for this product on the manufacturers website to determine if it would fit your application: https://www.polylok.com/mwdownloads/download/link/id/320/

Seeing that this covers OD is only 20.57" I would say no to your question.

## Frequently Bought Together

- Polylok 18" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC)
- Polylok 24" Heavy Duty Flat Cover/Lid for Corrugated Pipe (PN: 3008-WEST)
- Polylok 12" Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3004-C)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-27*