how many feet come in a 3 pk?

Both INDIVIDUAL packs - the 3/8" and the 1/2"- are 20 feet long.

no 1/4" one? either 20 or 50ft?

Not in this brand, but Amazon offers 1/4-inch backer rod in various lengths, from 10 feet to 100 feet, from other brands. Just search on "Backer Rod 1/4 Inch".

can the backer rod be sliced for smaller openings?

I have not done that, but it cuts easily with a sharp knife or scissors, so you should be able to slice it to fit whatever opening you have. It's good stuff!

Can his be used for exterior windows before caulking?

I used it to push into larger cracks in my driveway before applying concrete filler, and it worked great. I'm thinking that it should work well for filling in spaces around your windows prior to caulking.

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M-D Building Products71464Backer Rod for Gaps and Joints-3/8"X20' BACKER ROD

Product ID: 748708228

Details

ブランド
M-D Building
商品の形状
フォーム
商品の重量
0.6 オンス
推奨使用場所
色
グレー

✂️Easily cut to custom sizes

🌦️Weather-resistant durability

🛠️3/8" thickness for medium gaps

AR$99985

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

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Description

🛡️ Seal Smart, Live Comfortable — Don’t Let Gaps Crash Your Vibe!

CUSTOMIZABLE LENGTH - Cut to any size with scissors for tailored sealing solutions that fit your unique project needs.
EFFORTLESS INSTALLATION - Push in place—no adhesives or mess—then apply caulk for a professional-grade finish.
VERSATILE HOME PROTECTION - Ideal for concrete joints, window frames, roofs, and ventilated doors, enhancing comfort and energy efficiency.
BUILT TO BRAVE THE ELEMENTS - Crafted from weather-resistant closed-cell polyethylene to withstand rain, sun, and temperature swings.
PRECISION FIT FOR EVERY GAP - Snugly fills medium gaps up to 3/8" for airtight sealing and draft prevention.

The M-D Building Products 71464 Backer Rod is a 3/8" thick, 20-foot long closed-cell polyethylene foam rod designed to fill medium gaps and joints. Weather-resistant and easy to install without adhesives, it provides a durable base for caulking in both indoor and outdoor applications, enhancing energy efficiency and protecting against drafts, dust, and moisture.

Specifications

ASIN	B000BQS90G
GTIN (Global Trade Identification Number)	00043374714647
UPC	043374714647
おすすめ度	4.6 5つ星のうち4.6 (1,599) var
カラー	グレー
パック数	1
ブランド名	M-D Building Products
メーカー名	M-D Building Products
メーカー型番	71464
モデル番号	71464
ユニット数	1.0 個
商品の入り数	1
商品の重量	0.6 オンス
商品タイプ	フォーム
推奨する地面のタイプ	surface_recommendations
素材	ゴム, シリコーン, ビニール
耐水レベル	耐水

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AR$99985

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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