Name: Guardian Building Products 0302638 16 x 48 in. Fiberglass Insulation R38K Batt
Brand: Guardian Building Products
SKU: 0XCIRLD2GZWJ
Availability: OutOfStock
Rating: 4.9 (45 reviews)

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Guardian Building Products 0302638 16 x 48 in. Fiberglass Insulation R38K Batt

Brand

We provide a wide range of products to satisfy all houseware and supplies&#46; We are dedicated to give everyone the very best houseware supplies for all home needs, with a focus on dependability, our client satisfaction and great quality&#46; We provide high&#45;quality modern products to be enjoyed by many clients&#46; Our aim is continuous improvement and user satisfaction through effective implementation and quality of our products&#46;Features. Fiberglass insulation R38K battSpecifications. Size&#58; 16 x 48 in&#46;. Dimension&#58; 17'' H x 17'' W x 50'' L. Weight&#58; 37&#46;0795 lbs- SKU: ORGL99846

Universal Product Code (UPC check)

Ease Of Installation

Package

Ryan

We are first time home owners, and one of our first big DIY projects was insulating the attic. The Knauf Insulation comes in 16”x48” batts, which made installation a breeze. We were able to insulate the whole attic in one afternoon. Our friends and family were so impressed!! We owe it all to this quality product! Highly recommend.

So easy to install!

Knauf Insulation

I'm an insulation contractor with a few crews and we install anywhere from 25-40 truckloads of Knauf insulation per year.  For years it has been our preferred brand for a few reasons.  It is a very consistent material throughout which makes it cut more cleanly and install more smoothly.  Other brands we have tried have actually had chunks of unprocessed glass in them.  Others fall apart as you try to handle the pieces.   It is a smoother fiber which makes it less unpleasant to handle.  Other brands feel rougher.  We also love that it is greenguard certified as well as the high recycled content.  Overall this all translates into a better installation experience, which enhances the job outcome and makes a Grade 1 install more consistently achievable, and that's what is best for our customers' comfort and energy performance.  We are proud to install this material.

We order by the truckload

I Have worked in Building Products Distribution for 22 years and we have had many different Brands. Knauf Insulation is by far the best product I have ever touched. It is dust free, smell free and I have even rubbed it all over my face to show customers that it is itch free. It is simple an amazing product.

Best Insulation I have ever touched

As a subcontractor I try to use all Knauf Batt Products. The packaging is great, the product always expands to the R-Value stated on the bag, not itchy at all, and overall just blends in and makes a house look like its ready to move into. Myself and my team prefer Knauf over all other manufacturers.

ECOBATT-Great product

We buy this material constantly and it's a pleasure to work with. It expands properly, and is always in good shape. 
Only issue is sometimes the sleeves will pop open unexpectedly on cooler days, but that's a minor issue. the product itself is wonderful.

Great Material

I came from selling Guardian Fiberglass but had always thought that Knauf had the best quality insulation in the industry.  I have exzema on my hands and this insulation does not irritate them after touching.

Best Quality!

My company has used all the other big brands in the past. We now only install KN products. They are great to work with and much less irritating to the skin than other brands. Great product and terrific customer service

A pleasure to install compared w other brands

10 years ago our guys used to want to use Owen's because of the quality, now they will complain about Owens product whenever its in the building, the knauf product has came so far in quality that they dont want to use anything else!!

by far the best product on the market!

I have been using Knauf EcoBatt's for around 8 years, i have used every single manufactured insulation out there, and Knuaf takes the blue ribbon in every category, its soft to the touch allowing the installers to maintain a positive demeaner through the work day.
it is rigid and consistent in thickness and density providing a product that sticks where it is supposed to and cuts easily providing and end result of happy customers and happy Installers

Soft, Rigid, Not Itchy! Consistent!

I have used all kinds of batt insulation and this is the best. The batting is better quality than most other types. It is packaged nicely and comes out of the package as it should. It has been a struggle not being able to get 9ft material or R49 batts though.

great batting and blown in insulation