---
product_id: 58920158
title: "Manson 1.5\" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free"
brand: "fiahng"
price: "฿37771"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/58920158-manson-1-5-r4-2-fiberglass-duct-insulation-wrap-fsk
store_origin: TH
region: Thailand
---

# Formaldehyde Free R-Value 4.2 Vapor Control Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free

**Brand:** fiahng
**Price:** ฿37771
**Availability:** ✅ In Stock

## Summary

> Insulate Smart, Live Green! 🌍

## Quick Answers

- **What is this?** Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free by fiahng
- **How much does it cost?** ฿37771 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/58920158-manson-1-5-r4-2-fiberglass-duct-insulation-wrap-fsk)

## Best For

- fiahng enthusiasts

## Why This Product

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

## Key Features

- • **Enhanced Acoustics:** Enjoy peace and quiet with excellent sound-dampening properties.
- • **Durable Construction:** FSK facing provides robust vapor control and long-lasting performance.
- • **Versatile Application:** Perfect for both commercial and residential use, adapting to your insulation needs.
- • **Eco-Friendly Insulation:** Formaldehyde-free and made with a plant-based binder for a healthier environment.
- • **Superior Thermal Performance:** Achieve an impressive R-Value of 4.2, ensuring optimal energy efficiency.

## Overview

The Manson 1.5" Fiberglass Duct Insulation Wrap is a high-performance insulation solution designed for both commercial and residential applications. With an R-Value of 4.2, this formaldehyde-free product features a durable FSK facing for effective vapor control and enhanced thermal and acoustical properties. Made in the USA, it combines eco-friendliness with superior functionality, making it the ideal choice for modern insulation needs.

## Description

Manson Insulation Alley Wrap B is used as an external insulation on commercial or residential heating or air conditioning ducts. It is suitable for the exterior of rectangular or round sheet metal ducts and spaces, or surfaces where temperature and condensation must be controlled. Alley Wrap B fiberglass blanket insulation is a thermal and acoustical insulation product made from highly resilient, inorganic glass fibers bonded by a thermosetting resin. This product comes with a multi-purpose foil-scrim kraft (FSK) jacket. Vapor retarders have a 2" (51 mm) stapling flange on one edge and the factory-applied facing assures uniform quality. These fiberglass duct wrap insulation rolls are GREENGUARD (/GREENGUARD GOLD) certified and come with ECOSE technology, which utilizes a formaldehyde-free, plant based sustainable “binder” that gives the product its shape and brown color.

## Features

- Installed R Value = 4.2 (1.5"), 6(2-3/16"), 8(3")
- Formaldehyde Free, Plant-based binder
- FSK (Foil-Scrim-Kraft) facing for vapor control
- Thermal and Acoustical Properties, Condensation Control
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Manson |
| Part Number | 515655 |
| Item Weight | 47.2 pounds |
| Product Dimensions | 51.18 x 70.87 x 0.04 inches |
| Size | 1.5" |
| Color | Brown |
| Material | Fiberglass |
| Thickness | 1.5 Inches |
| Usage | Commercial/Residential |
| Batteries Required? | No |

## Product Details

- **Material:** Fiberglass
- **Brand:** FIAHNG
- **Item Thickness:** 1.5 Inches
- **Product Dimensions:** 100"L x 4"W
- **Manufacturer:** Manson

## Images

![Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free - Image 1](https://m.media-amazon.com/images/I/41QlcEtM2AL.jpg)
![Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free - Image 2](https://m.media-amazon.com/images/I/41Eq37fX-CL.jpg)
![Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free - Image 3](https://m.media-amazon.com/images/I/41pGd5t9X7L.jpg)
![Manson 1.5" (R4.2)Fiberglass Duct Insulation Wrap FSK Foil Faced (4' Wide x 100' Length) - Formaldehyde Free - Image 4](https://m.media-amazon.com/images/I/41a2wK6HDdL.jpg)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-05*