---
product_id: 138425205
title: "Extend & Lok 4\" for Effluent Filters"
brand: "polylok"
price: "€ 165.82"
currency: EUR
in_stock: true
reviews_count: 1
url: https://www.desertcart.es/products/138425205-extend-and-lok-4-for-effluent-filters
store_origin: ES
region: Spain
---

# Durable PVC 4" Compatibility Easy Install Extend & Lok 4" for Effluent Filters

**Brand:** polylok
**Price:** € 165.82
**Availability:** ✅ In Stock

## Summary

> 🔗 Lock in Efficiency with Ease!

## Quick Answers

- **What is this?** Extend & Lok 4" for Effluent Filters by polylok
- **How much does it cost?** € 165.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/138425205-extend-and-lok-4-for-effluent-filters)

## 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

- • **Hassle-Free Setup:** No gluing necessary for a quick and easy installation.
- • **Lightweight Design:** Weighs only 136 g for effortless handling.
- • **Sturdy Construction:** Made from high-quality polyvinyl chloride for long-lasting use.
- • **Seamless Integration:** Fits any 4" pipe centers filter or tee under riser.
- • **Versatile Application:** Perfect for various effluent filter setups.

## Overview

The Polylok Extend & Lok 4" For Effluent Filters is a versatile and user-friendly solution designed to fit any 4" pipe centers filter or tee under riser. With its lightweight design and durable PVC construction, installation is a breeze—no gluing required! Perfect for professionals seeking reliability and efficiency in their plumbing solutions.

## Description

Polylok Extend & Lok 4" for Effluent Filters

## Features

- Fits any 4" pipe
- Centers filter or tee under riser
- Easy Installation
- No gluing necessary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Polylok |
| Model Number | 30130-TL |
| Colour | White |
| Product Dimensions | 21.59 x 11.43 x 11.43 cm; 136.08 g |
| Material | Polyvinyl Chloride |
| Item Weight | 136 g |

## Images

![Extend & Lok 4" for Effluent Filters - Image 1](https://m.media-amazon.com/images/I/41jI6HwMfgL.jpg)

## Questions & Answers

**Q: Manufacturer says this can be used to extend an inlet pipe. Using this on an inlet pipe to a tank may create clogs. has any had problems?**
A: Discharging my rv into the septic inlet using this piece connected to pvc.  No clogs so far.

**Q: Do you have the 6 inch extend & lok ?**
A: Yes, https://www.amazon.com/PolyLok-Extend-Lok-Effluent-Filters/dp/B085T216N7/ref=sr_1_2?crid=1C80QAOEMN52E&keywords=Polylok+6%22+Extend+%26+Lok%E2%84%A2+for+Effluent+Filters&qid=1640266938&sprefix=polylok+6+extend+%26+lok+for+effluent+filters%2Caps%2C81&sr=8-2

**Q: What is the outter diameter of the small end (that gets twisted into the existing). It should be smaller than 4 inches so it can eventually snug up.**
A: It is less than 4 inch as it did slip into the 4 inch pipe.  But I've already installed so can't measure.

**Q: Will this work on inlet clay pipe**
A: "Fits any pipe with an inside diameter of 4"
https://www.youtube.com/watch?v=iFqMv1P4h_E&feature=emb_imp_woyt
Fits: Clay, Cast Iron, SCH 40 PVC / ABS, and SDR 35 PVC pipe.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by S***S on 1 July 2023*

My septic tank out ler had broken, its an old one with a old stile pipe. This worked a treat, had to cut the 4”end of the plastic pipe to fit but it worked fine. Job done !

## Frequently Bought Together

- Polylok 4" Extend & Lok™ for Effluent Filters
- Polylok PL-68 Effluent Filter & Housing (Baffle/Tee)
- Tuf-Tite Effluent Filter EF-4 Combo

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**Shop now:** [https://www.desertcart.es/products/138425205-extend-and-lok-4-for-effluent-filters](https://www.desertcart.es/products/138425205-extend-and-lok-4-for-effluent-filters)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-04-24*