---
product_id: 303018378
title: "WHITE UNIVERSAL J-BLOCK UNIBLOCK PW"
brand: "alcoa home exteriors"
price: "$58"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/303018378-white-universal-j-block-uniblock-pw
store_origin: NZ
region: New Zealand
---

# Supports up to 250V voltage 8.19" x 8.19" surface dimensions Adjustable J-Channel 1/2" to 1-1/4" WHITE UNIVERSAL J-BLOCK UNIBLOCK PW

**Brand:** alcoa home exteriors
**Price:** $58
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your exterior game with the ultimate universal J-Block!

## Quick Answers

- **What is this?** WHITE UNIVERSAL J-BLOCK UNIBLOCK PW by alcoa home exteriors
- **How much does it cost?** $58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/303018378-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

- • **Durable Vinyl Build:** Crafted from high-quality vinyl for long-lasting weather resistance and minimal maintenance.
- • **Compact & Lightweight:** Slim 8.19" square design weighing just 6.7 ounces for easy handling and installation.
- • **Power-Ready Performance:** Rated for 250 volts, ideal for reliable electrical connections in any setup.
- • **Precision Fit, Every Time:** Universal J-Block with adjustable J-Channel ensures seamless installation and perfect alignment.
- • **Versatile Mounting Options:** Supports both inside and surface mounting to suit diverse project needs.

## Overview

The WHITE UNIVERSAL J-BLOCK UNIBLOCK PW by Alcoa Home Exteriors is a versatile, durable vinyl connector block measuring 8.19" square. Featuring an adjustable J-Channel (1/2" to 1-1/4"), it supports 250 volts and offers both inside and surface mounting options, making it a reliable choice for professional-grade exterior electrical installations.

## 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 |
|---------------|-------|
| 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 |
| Manufacturer | Alcoa Home Exteriors |
| UPC | 723605946961 |
| Part Number | UNIBLOCK PW |
| Item Weight | 6.7 ounces |
| Item model number | UNIBLOCK PW |
| Size | Pack of 1 |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/303018378-white-universal-j-block-uniblock-pw](https://www.desertcart.nz/products/303018378-white-universal-j-block-uniblock-pw)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-27*