Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 17 - Jun 22
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Johns Manville R-38 Attic Unfaced Fiberglass Batt Insulation, 63.33-sq ft Coverage (23.75-in W x 48-in L) - U1348SR 38 Unfaced Fiberglass Batt Insulation for Attics Formaledehyde free fiberglass batts deliver R 38 thermal performance for attics and cathedral ceilings. Pre cut 48 in lengths fit 24 in on center framing and provide 63. 33 sq ft of coverage per pack. Key Features: High R Value Performance: R 38 insulation boosts energy efficiency and comfort Unfaced Design: No vapor barrierideal for adding over existing insulation Pre Cut Convenience: 48 in batts
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1258 reviews
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Product Reviews
★★★★★ 5
For Toyota Rav4
Size: 72880-FL00A
Great price and quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 4
Good price reasonable quality
Size: 72880-FL00A
Looks like a good fit. Not ready to install just yet. I expect np problems. Thanks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2024
★★★★★ 5
Check if your Subaru has / needs a plastic tray
Size: 72880-FL00A
Works great for my 2015 Subaru Outback, not so much for my 2013 Impreza in terms of installation, missing plastic holder for 2013 Subaru Impreza, while 2015 outback does not require the plastic holder
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Perfect fit. 2024 Crosstrek.
Size: 72880-FL00A
Perfect fit 2024 crosstrek!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Fits my 2026 civic sport perfect!
Size: AF151
No issues, fitment is perfect. Great quality for an excellent price. Dealer wanted like $24 for a basic one. Nah I'm good I'll just go on Amazon and get it for $8. Took 30 seconds from start to finish can't get any easier.
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Reviewed in the United States on May 25, 2026
