---
product_id: 478638321
title: "WHITE UNIVERSAL J-BLOCK UNIBLOCK PW"
brand: "alcoa home exteriors"
price: "€ 154.78"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/478638321-white-universal-j-block-uniblock-pw
store_origin: FI
region: Finland
---

# 8-3/16" x 8-3/16" Single pack Adjusts 1/2" to 1-1/4" WHITE UNIVERSAL J-BLOCK UNIBLOCK PW

**Brand:** alcoa home exteriors
**Price:** € 154.78
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Projects with the Ultimate J-Block!

## Quick Answers

- **What is this?** WHITE UNIVERSAL J-BLOCK UNIBLOCK PW by alcoa home exteriors
- **How much does it cost?** € 154.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/478638321-white-universal-j-block-uniblock-pw)

## Best For

- alcoa home exteriors enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Brand:** Manufactured by Alcoa Home Exteriors, a name synonymous with quality.
- • **Adjustable Fit:** Easily adapts from 1/2" to 1-1/4" to meet your project needs.
- • **Lightweight Design:** Weighing only 191 grams, it's easy to handle and install.
- • **Versatile Dimensions:** Perfectly sized at 8-3/16" x 8-3/16" for seamless integration.
- • **Durable Vinyl Material:** Crafted from high-quality vinyl for long-lasting performance.

## Overview

The WHITE UNIVERSAL J-BLOCK UNIBLOCK PW is a versatile and durable vinyl component designed for seamless integration into your home improvement projects. With dimensions of 8-3/16" x 8-3/16" and an adjustable fit from 1/2" to 1-1/4", this lightweight product ensures ease of installation and reliability, backed by the trusted quality of Alcoa Home Exteriors.

## Description

WHITE UNIVERSAL J-BLOCK UNIBLOCK PW

## Features

- Surface Dimensions 8-3/16" x 8-3/16"
- J-Channel Inside Dimensions1/2" Adjusts to 1-1/4"
- Round Knockout 3-11/16"
- Material Vinyl
- Package Quantity 1

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Alcoa Home Exteriors |
| Part number | UNIBLOCK PW |
| Item Weight | 191 g |
| Package Dimensions | 27.51 x 24 x 5.79 cm; 191 Grams |
| Item model number | UNIBLOCK PW |
| Size | Pack of 1 |
| Material | Vinyl |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| Plug profile | Surface |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Connector Type:** Screw
- **Number Of Contacts:** 1
- **Mounting Type:** Inside Mount,Surface
- **Material:** vinyl
- **Color:** White
- **Brand:** Alcoa Home Exteriors
- **Voltage:** 250 Volts
- **Number Of Poles:** 1
- **Product Dimensions:** 8.19"W x 8.19"H
- **Centerline Length:** 8.19 Inches

## Images

![WHITE UNIVERSAL J-BLOCK UNIBLOCK PW - Image 1](https://m.media-amazon.com/images/I/51f-GH2BfNL.jpg)

## Questions & Answers

**Q: Can these be painted?**
A: It can be painted, you will need to use a paint suitable for vinyl material. The first time I tried I didn’t use the correct paint and it  peeled off within a couple months.

**Q: Can this be used for exterior lights?**
A: YES

**Q: Is this large enough for a 2-Gang box?**
A: yes

**Q: Can this be mounted over an existing junction box?**
A: This j block is meant for vinyl siding mount to what's behind the siding. The block is the electrical box

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**Shop now:** [https://www.desertcart.fi/products/478638321-white-universal-j-block-uniblock-pw](https://www.desertcart.fi/products/478638321-white-universal-j-block-uniblock-pw)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-17*