---
product_id: 75638240
title: "G 3131 Sliding Window Tandem Roller Assembly, 3/8 In. Brass Rollers (2 Pack)"
brand: "prime-line"
price: "€ 11.91"
currency: EUR
in_stock: true
reviews_count: 7
category: "Prime Line"
url: https://www.desertcart.pt/products/75638240-g-3131-sliding-window-tandem-roller-assembly-3-8-in
store_origin: PT
region: Portugal
---

# 2-position height adjustable housing 3/8 in. precision brass rollers Snap-apart design for single or dual glazed windows G 3131 Sliding Window Tandem Roller Assembly, 3/8 In. Brass Rollers (2 Pack)

**Brand:** prime-line
**Price:** € 11.91
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your window game with precision and ease!

## Quick Answers

- **What is this?** G 3131 Sliding Window Tandem Roller Assembly, 3/8 In. Brass Rollers (2 Pack) by prime-line
- **How much does it cost?** € 11.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/75638240-g-3131-sliding-window-tandem-roller-assembly-3-8-in)

## Best For

- prime-line enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Compatibility:** Specifically designed for Merzon windows, with proven fit on Jeld-Wen models after minor tweaks.
- • **Custom Fit Flexibility:** 2-position height adjustment adapts seamlessly to your window type—single or dual glazed.
- • **Double Roller Advantage:** Tandem roller design offers enhanced stability and smoother window operation.
- • **Smooth Glide, Every Time:** Durable brass rollers ensure effortless sliding and long-lasting performance.
- • **Quick & Easy Installation:** Snap-apart nylon housing simplifies replacement without hassle or extra tools.

## Overview

The Prime-Line G 3131 Sliding Window Tandem Roller Assembly features 3/8 inch brass rollers housed in a white nylon frame with a 2-position height adjustment. Designed primarily for Merzon windows, this snap-apart assembly supports both single and dual glazed windows, delivering smooth sliding performance and easy installation. Sold as a 2-pack, it offers durable, reliable window hardware backed by a 1-year warranty.

## Description

This is a sliding window white plastic housing. It is center grooved tandem brass rollers. Used on Merzon windows. Features a 2 position height adjustment housing can snap apart for single glazed, or left as tandem for dual glazed windows.

Review: fits and works - Took a couple to get the correct one, but Great !
Review: With a little work they worked! - Bought these to replace the nylon rollers in my Jeld-Wen window, and I looked everywhere for them. They weren't a perfect fit (and the description didn't say they were) but I took a chance and with a little trimming they fit well and work great. Bonus, these are double roller units as pictured, and you get two of them.

## Features

- Brass construction
- Comes attached to a white nylon housing
- Used by Merzon windows
- Easy installation
- Thread Type: Deep, Point Style: Sharp

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FLMW01E |
| Batteries Required? | No |
| Best Sellers Rank | #573,724 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #976 in Window Dressing Hardware |
| Brand | PRIME-LINE |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (30) |
| Date First Available | September 23, 2013 |
| Global Trade Identification Number | 00049793031310 |
| Item Package Quantity | 1 |
| Item Weight | 0.01 ounces |
| Item model number | G 3131 |
| Manufacturer | Prime-Line Products |
| OEM Part Number | G 3131 |
| Part Number | G 3131 |
| Pitch Circle Diameter | 0.38 Inches |
| Product Dimensions | 0.63 x 3.81 x 5.44 inches |
| Size | 3/8 in. |
| UPC | 049793031310 |
| Usage | Indoor use only |
| Warranty Description | Goods are warranted against manufacturing defects for 1 year. |
| Wheel Size | 0.38 Inches |

## Product Details

- **Brand:** PRIME-LINE
- **Exterior Finish:** Unfinished
- **Global Trade Identification Number:** 00049793031310
- **Item Weight:** 0.01 Ounces
- **Material:** Brass
- **OEM Part Number:** G 3131
- **Pitch Circle Diameter:** 0.38 Inches
- **Size:** 3/8 in.
- **UPC:** 049793031310
- **Wheel Size:** 0.38 Inches

## Images

![G 3131 Sliding Window Tandem Roller Assembly, 3/8 In. Brass Rollers (2 Pack) - Image 1](https://m.media-amazon.com/images/I/41cZSalo8GL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ fits and works
*by W***V on May 21, 2025*

Took a couple to get the correct one, but Great !

### ⭐⭐⭐⭐⭐ With a little work they worked!
*by D***L on June 26, 2019*

Bought these to replace the nylon rollers in my Jeld-Wen window, and I looked everywhere for them. They weren't a perfect fit (and the description didn't say they were) but I took a chance and with a little trimming they fit well and work great. Bonus, these are double roller units as pictured, and you get two of them.

### ⭐⭐ Not so great of a product
*by I***R on July 5, 2020*

I ordered this, installed them, but the windows still do not slide smoothly. The rollers sit on plastic , which does not five way for rollers to roll, as sliding windows are heavy. Trying to find something similar

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**Shop now:** [https://www.desertcart.pt/products/75638240-g-3131-sliding-window-tandem-roller-assembly-3-8-in](https://www.desertcart.pt/products/75638240-g-3131-sliding-window-tandem-roller-assembly-3-8-in)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-03*