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Best Polyguard Deals of Nov 2026

Updated November 10, 2026·Our site contains affiliate links for which we may be compensated.

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Top Picks

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POLYGUARD Blue Barrier Liquid Flashing 12-Pack Case of 20oz Sausage Tubes. Weather Resistant Air Barrier System Around Window and Door Installations. Low VOC, Made in The USA.

Creates an air-tight seal that resists harsh elements. Permanently flashes and seals around building penetrations.

Superior adhesion to concrete, metal, CMU block, untreated OSB or plywood sheathings, gypsum, and ICF.

Shore A Hardness of 55-65 with Tensile Strength of 300-350 PSI, Elongation of 200-250%, and 100% solids content.

Bonds to multiple substrates in either wet or dry conditions. Tack-free in 30-45 minutes. Cures in 8+ hours depending on conditions.

Complies with ASTM E84, AAMA 714-715, and NFPA 285 under many wall assemblies. Application ambient and surface temperature range of 40-100°F.

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Blue Barrier Liquid Flashing 2-Pack, 20oz Sausage Tubes, Weather-Resistant Air Barrier for Window and Door Installations, Low VOC, Made in The USA

Creates an air-tight seal that resists harsh elements. Permanently flashes and seals around building penetrations.

Superior adhesion to concrete, metal, CMU block, untreated OSB or plywood sheathings, gypsum, and ICF.

Shore A Hardness of 55-65 with Tensile Strength of 300-350 PSI, Elongation of 200-250%, and 100% solids content.

Bonds to multiple substrates in either wet or dry conditions. Tack-free in 30-45 minutes. Cures in 8+ hours depending on conditions.

Complies with ASTM E84, AAMA 714-715, and NFPA 285 under many wall assemblies. Application ambient and surface temperature range of 40-100°F.

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Poly Guard System Replacement Cartridge – Replacement Cartridges for Crystal System -Works with Whole-Home Water Filters – Scale and Rust Preventer – Treats Hard Water

<b>Price For:</b> Each <b>Reduces</b>: Scale and Iron Build-up <b>Series</b>: Poly Guard <b>Height</b>: 10" <b>Outside Dia.</b>: 2-1/2" <b>Filter Media</b>: Polypropylene Crystals <b>Filter Cartridges Sub-Category</b>: Specialty Cartridges <b>Item</b>: Filter Cartridge <b>Service Life</b>: 30, 000 gal. <b>Country of Origin (subject to change)</b>: United States

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Also available at

Zoro

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Seachem

Seachem PolyGuard 100 g / 3.5 oz

Country Of Origin : United States

The Package Height Of The Product Is 2.3 Inches

The Package Length Of The Product Is 4.9 Inches

The Package Width Of The Product Is 2.4 Inches

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POLYGUARD Blue Barrier Liquid Flashing 3-Pack 20oz Sausage Tube. Weather Resistant Air Barrier System Around Window and Door Installations. Low VOC, Made in The USA. 12:1 Sausage Applicator.

Kit Includes: Liquid Flashing 20oz Sausage x 3, 12:1 Thrust Blue Sausage Applicator x 1.

Creates an air-tight seal that resists harsh elements. Permanently flashes and seals around building penetrations. Superior adhesion to concrete, metal, CMU block, untreated OSB or plywood sheathings, gypsum, and ICF.

Shore A Hardness of 55-65 with Tensile Strength of 300-350 PSI, Elongation of 200-250%, and 100% solids content.

Bonds to multiple substrates in either wet or dry conditions. Tack-free in 30-45 minutes. Cures in 8+ hours depending on conditions.

Complies with ASTM E84, AAMA 714-715, and NFPA 285 under many wall assemblies. Application ambient and surface temperature range of 40-100°F.

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POLYGUARD Term Flashing Termite Barrier 4" x75' Roll. Non Chemical, Non Structural Insect and Moisture Barrier. Self Adhesive Sheet, Low Temperature Application Down to 30°F

TERM Flashing | Termite Barrier is applied where the horizontal concrete slab intersects with exterior sheathing. This area is a frequent entry point for termites that have come up on the outside of the foundation wall.

Acts as a non-chemical barrier to all insects when properly constructed as part of the building envelope. Also acts as a barrier to water and energy leaks.

4", 6", and 9" are available for flashing windows, doors, and seams. 12" and 18" rolls are available for sheathing to concrete slab areas.

Required overlap: 2” minimum overlap on straight seams, recommend 4”overlap changing planes and building materials.

Polyguard's TERM Barrier System products are part of an Integrated Pest Management (IPM) program and are manufactured in the USA.

The sealant in the roll is formulated from polymer asphalt. It is a strong, pliable, self-adhesive sheet consisting of a 4 mil high-density polyethylene film bonded to 36 mils of sealant.

Designed for low-temperature application down to 30°F (-1°C) with 30 days maximum exposure limit to UV.

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POLYGUARD Poly Wall - Rot Shield Joist Tape for Decking, 4" x 100'. Made in The USA. Self Adhering, Self Sealing Deck Joist Tape for Wood Decks

Ultimate Defense Against Rot: Shields joists from water damage, preventing rot and decay for a longer deck lifespan

Superior, Long-Lasting Protection: Durable rubberized asphalt and polyethylene film create a robust, waterproof seal

Enhanced Adhesion & Flexibility: Engineered for a strong bond and adapts to irregular surfaces for complete coverage

Easy, All-Weather Installation: Self-adhering application with a split release liner, even in cold temperatures; no priming needed

Maintains Structural Integrity: Protects against moisture buildup and seals around fasteners, preventing water intrusion

Resists UV Degradation: Maintains protective properties under direct sunlight for up to 120 days. If your project is delayed, Polyguard Poly Wall Rot Shield will continue to protect

Aesthetically Discreet & Clearly Labeled: Dark brown color blends seamlessly; labeled for correct placement

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Seachem

Seachem SC 10g POLYGUARD 0.4oz

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POLYGUARD WindowSeal Window and Door Flashing Tape, 6 in x 100 ft Roll, 20 mil Thick, Self-Sealing & Self-Adhering Waterproof Barrier

Waterproof Seal: Self-adhering design creates a watertight barrier for windows, doors, and seams

Versatile Application: Ideal for flashing straight window frames, door frames, and construction seams

Cold & Hot Climate Ready: Performs in temperatures from 40° F to 120° F; store in warm space before cold-weather installs

Flexible Installation: Conforms to irregular shapes and uneven, porous substrates

Nail Sealability: Forms a smooth, sealed surface around nails, staples, and fasteners

Tear-Resistant Performance: Resists cracking and tearing from structural movement or extreme weather

Verified Quality: AAMA 711 compliant; made in the USA for dependable building performance

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POLYGUARD Blue Barrier Liquid Flashing 12-Pack 20oz Sausage Tubes, 12:1 Sausage Applicator Weather Resistant Air Barrier System Around Window and Door Installations. Low VOC, Made in The USA.

Kit Includes: Liquid Flashing 20oz Sausage x 12, 12:1 Thrust Blue Sausage Applicator x 1.

Creates an air-tight seal that resists harsh elements. Permanently flashes and seals around building penetrations. Superior adhesion to concrete, metal, CMU block, untreated OSB or plywood sheathings, gypsum, and ICF.

Shore A Hardness of 55-65 with Tensile Strength of 300-350 PSI, Elongation of 200-250%, and 100% solids content.

Bonds to multiple substrates in either wet or dry conditions. Tack-free in 30-45 minutes. Cures in 8+ hours depending on conditions.

Complies with ASTM E84, AAMA 714-715, and NFPA 285 under many wall assemblies. Application ambient and surface temperature range of 40-100°F.

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Our #1 Pick Today

ProductPage Image

POLYGUARD Blue Barrier Liquid Flashing 12-Pack Case of 20oz Sausage Tubes. Weather Resistant Air Barrier System Around Window and Door Installations. Low VOC, Made in The USA.

Creates an air-tight seal that resists harsh elements. Permanently flashes and seals around building penetrations.

Superior adhesion to concrete, metal, CMU block, untreated OSB or plywood sheathings, gypsum, and ICF.

Shore A Hardness of 55-65 with Tensile Strength of 300-350 PSI, Elongation of 200-250%, and 100% solids content.

Bonds to multiple substrates in either wet or dry conditions. Tack-free in 30-45 minutes. Cures in 8+ hours depending on conditions.

Complies with ASTM E84, AAMA 714-715, and NFPA 285 under many wall assemblies. Application ambient and surface temperature range of 40-100°F.

Compare

Disclaimer: While we make every effort to ensure accuracy, we cannot guarantee that all product specifications, pricing, discounts, and details are complete or error-free. Because information is subject to change, we recommend verifying all details directly with the retailer prior to making a purchase. As an Amazon Associate, we earn from qualifying purchases.

10 Polyguard deals are available from: Amazon, starting from $9.89.

The biggest discount we found is 5% on Poly Guard System Replacement Cartridge – Replacement Cartridges for Crystal System -Works with Whole-Home Water Filters – Scale and Rust Preventer – Treats Hard Water (GP10C) at Amazon.

The lowest price we found is $9.89 while the highest is $307.49. Prices for the best Polyguard deals average at $102.38.

Compare prices across stores, find real deals, and get an email when the products you want drop in price.

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