Model No:P12789
4 x 20" Flat Poly Bags, 3 Mil
3 Mil Wholesale Flat Poly Bags- Twice as Thick for Extra Protection
Our 3 Mil flat poly bags are twice as thick as standard poly bags, offering increased puncture resistance and durability for your packaging needs.
- Light as Air: Despite their extra thickness, these 3 Mil bags remain lightweight and economical, protecting against dust, dirt, and moisture without adding extra bulk to your shipments.
- Crystal Clear & Tough: Made from 100% virgin polyethylene bags, these bags are crystal clear and strong! Heat-sealed side and bottom welds provide superior durability.
- Food-Safe Bags: Whether you are packing food, snacks, parts, or industrial products, these 3 mil flat poly bags meet FDA and USDA for safely packing heavier items.
- Made for you: We have flat poly bags in different sizes, from small 3x3" to large 48x48" flat poly bags. We know that one size doesn't fit all regarding packaging!
Serve it, store it, and keep it fresh! SupplyLand’s food service essentials include everything you need. We provide Ziploc storage bags, freezer bags, plastic bags, stretch wrap, aluminum foil sheets, and aluminum foil rolls.
Pack it up, ship it, and forget it! SupplyLand’s selection of wholesale packing and shipping supplies includes everything you need to pack and ship products effectively. From long shipping boxes, tape, mailers, and poly bags to labels and packing paper, SupplyLand has you covered with wholesale prices.
Length (in.)Â :Â 20
Qty / Case : 1,000
Thickness (Mil.)Â :Â 3
Width (in.)Â :Â 4
4 x 20" Flat Poly Bags, 3 Mil
P12789

3 Mil Wholesale Flat Poly Bags- Twice as Thick for Extra Protection
Our 3 Mil flat poly bags are twice as thick as standard poly bags, offering increased puncture resistance and durability for your packaging needs.
- Light as Air: Despite their extra thickness, these 3 Mil bags remain lightweight and economical, protecting against dust, dirt, and moisture without adding extra bulk to your shipments.
- Crystal Clear & Tough: Made from 100% virgin polyethylene bags, these bags are crystal clear and strong! Heat-sealed side and bottom welds provide superior durability.
- Food-Safe Bags: Whether you are packing food, snacks, parts, or industrial products, these 3 mil flat poly bags meet FDA and USDA for safely packing heavier items.
- Made for you: We have flat poly bags in different sizes, from small 3x3" to large 48x48" flat poly bags. We know that one size doesn't fit all regarding packaging!
Serve it, store it, and keep it fresh! SupplyLand’s food service essentials include everything you need. We provide Ziploc storage bags, freezer bags, plastic bags, stretch wrap, aluminum foil sheets, and aluminum foil rolls.
Pack it up, ship it, and forget it! SupplyLand’s selection of wholesale packing and shipping supplies includes everything you need to pack and ship products effectively. From long shipping boxes, tape, mailers, and poly bags to labels and packing paper, SupplyLand has you covered with wholesale prices.
- Product Info
- Specifications
- FAQs
- Options
- None
Weight:
- Unit Wt. (lbs.): 16.3
Usage:
- Bottom seal.
- Not treated for printing by end-user.
- Not recommended for dry ice.
- Not microwaveable.
- Cannot be used for baking, cooking or boiling.
- Do not store in sub-freezing temperatures.
- 3 or 4 mil is recommended for use in a trash compactor.
- Water-resistant not waterproof.
- Cannot use with vacuum machine.
Material:
- Low/Linear Low Density
- Sulfur free
- Amine and Silicone free
- Latex free
- BHT free (Butylated Hydroxy Toluene)
- Chlorine free
- PVC free
Temperature:
- 20° - 150° F
Capacity:
- Not tested for weight capacity.
Recycling:
- Recyclable #4
Specifications:
- Meets FDA 21 CFR 177.1520
- Not UPS approved.
- Not Postal approved.
- Not clean room approved.
- Acid free and archival safe.
- MVTR (Moisture Vapor Transmission Rates) or OTR (Oxygen Transmission Rates) not available.
- Free of GMO's, fungicides and fumigants.
FAQs for 3 Mil Flat Poly Bags at SupplyLand
What makes 3 Mil flat poly bags different from standard poly bags?
Our 3 Mil flat poly bags are twice as thick as standard poly bags, providing increased puncture resistance and greater durability. This makes them ideal for packaging heavier items or products that require extra protection during shipping and storage.
What are 3 Mil flat poly bags used for?
These bags are perfect for a variety of applications, including packaging heavier products like food, snacks, industrial parts, clothing, electronics, and more.
Their extra thickness offers better protection for items that need to be shielded from puncture, moisture, dust, dirt, and other contaminants.
What sizes of wholesale flat poly bags do you offer?
We offer a wide variety of Flat poly bag sizes to accommodate all your packaging needs, including:
- 3" x 4" – Ideal for food products, small parts, jewelry, or small items
- 4" x 6" – Perfect for stationery and smaller accessories
- 6" x 9" – Great for clothing and medium-sized products
- 8" x 12" – Suitable for larger items like apparel and electronics
- 10" x 14" – Excellent for bulkier items that need secure packaging
- 30 x 36"– Best for oversized items or products requiring extra space
Each size is available in 3 Mil thickness, providing lightweight yet durable protection for your items.
What types of clear poly bags do you offer?
At SupplyLand, we offer the following clear poly bag options to suit your business needs:
- Flat Poly Bags: Clear, lightweight, and economical for general-purpose packaging
- Reclosable Poly Bags: Ideal for keeping products secure with a built-in zipper
- Self-Sealing Poly Bags: Designed for quick and easy packing with an adhesive seal
- Slider Zip Bags: Perfect for shipping small electronics, auto parts, snacks, etc.
- Heavy-Duty Poly Bags: Available in thicker mils for extra protection
Each option ensures your items stay protected during transit or storage.
What are the main features of your poly bags?
Our poly bags are made from high-clarity 100% virgin polyethylene, providing excellent protection from dust, dirt, and moisture. They feature heat-sealed side and bottom welds for added durability. These bags are also available in a range of thicknesses from 1 mil to 4 mil, offering flexibility for various packaging needs.
Are your poly bags FDA and USDA approved?
Yes! Our poly bags meet FDA and USDA specifications for food contact, making them ideal for packaging food, snacks, and other consumables safely.
Are poly bags environmentally friendly?
Our poly bags are made from recyclable materials and are reusable for certain applications, helping to minimize waste. However, it's important to check local recycling guidelines for proper disposal.
How durable are your poly bags?
Our poly bags are highly durable, featuring strong heat-sealed seams to withstand rough handling. They protect products from moisture, dust, and other contaminants, making them perfect for shipping items like clothing, electronics, and food.
How do I seal poly bags?
All our bags are heat-sealable. To ensure a secure and tight closure, you can use twist ties, bag tape, or impulse sealers.
What are the thickness options for poly bags?
Our poly bags are available in different thicknesses to suit your packaging needs:
- 1 mil: Lightweight protection for delicate items
- 2 mil: Great for general use, offering a balance of protection and flexibility
- 3 mil: Provides extra durability for heavier products
- 4 mil: Ideal for protecting bulky or fragile items
What does "mil" mean in poly bags?
"Mil" refers to the thickness of the poly bag, with one mil equal to one-thousandth of an inch (0.001"). A higher mil number indicates a thicker, more durable bag, while a lower mil number signifies a lighter, more flexible bag. For example, 1 Mil bags are lightweight, while 4 Mil bags offer extra protection for heavier or bulkier items.
How do I mail poly bags?
Place your items inside the poly bag, seal it securely, and apply the appropriate shipping label or postage. For lighter packages, you can use standard mail; for heavier items, you may want to use a shipping service.
Are your poly bags moisture-resistant?
Our polyethylene bags protect against moisture, dust, and dirt, keeping your products safe during transit or storage.
Can I use poly bags for industrial products?
Our strong poly bags and wholesale plastic bags are ideal for industrial products. They work well for small machine parts and electrical components. Their strong construction ensures they can handle tough environments.
Explore SupplyLand’s Poly Mailers
Looking for something more colorful? Check out our poly mailers for a fun and protective way to ship products like clothing, electronics, and accessories. Bright, moisture-resistant, and reliable, they ensure your items arrive in perfect condition!
Why Choose SupplyLand?
At SupplyLand, we’re passionate about providing the best packaging solutions for your business. From poly bags and mailers to corrugated boxes and tape, all your shipping needs are covered. Take advantage of bulk pricing, fast shipping, exclusive deals, and complimentary gifts on orders over $150!
Weight:
- Unit Wt. (lbs.): 16.3
Usage:
- Bottom seal.
- Not treated for printing by end-user.
- Not recommended for dry ice.
- Not microwaveable.
- Cannot be used for baking, cooking or boiling.
- Do not store in sub-freezing temperatures.
- 3 or 4 mil is recommended for use in a trash compactor.
- Water-resistant not waterproof.
- Cannot use with vacuum machine.
Material:
- Low/Linear Low Density
- Sulfur free
- Amine and Silicone free
- Latex free
- BHT free (Butylated Hydroxy Toluene)
- Chlorine free
- PVC free
Temperature:
- 20° - 150° F
Capacity:
- Not tested for weight capacity.
Recycling:
- Recyclable #4
Specifications:
- Meets FDA 21 CFR 177.1520
- Not UPS approved.
- Not Postal approved.
- Not clean room approved.
- Acid free and archival safe.
- MVTR (Moisture Vapor Transmission Rates) or OTR (Oxygen Transmission Rates) not available.
- Free of GMO's, fungicides and fumigants.
FAQs for 3 Mil Flat Poly Bags at SupplyLand
What makes 3 Mil flat poly bags different from standard poly bags?
Our 3 Mil flat poly bags are twice as thick as standard poly bags, providing increased puncture resistance and greater durability. This makes them ideal for packaging heavier items or products that require extra protection during shipping and storage.
What are 3 Mil flat poly bags used for?
These bags are perfect for a variety of applications, including packaging heavier products like food, snacks, industrial parts, clothing, electronics, and more.
Their extra thickness offers better protection for items that need to be shielded from puncture, moisture, dust, dirt, and other contaminants.
What sizes of wholesale flat poly bags do you offer?
We offer a wide variety of Flat poly bag sizes to accommodate all your packaging needs, including:
- 3" x 4" – Ideal for food products, small parts, jewelry, or small items
- 4" x 6" – Perfect for stationery and smaller accessories
- 6" x 9" – Great for clothing and medium-sized products
- 8" x 12" – Suitable for larger items like apparel and electronics
- 10" x 14" – Excellent for bulkier items that need secure packaging
- 30 x 36"– Best for oversized items or products requiring extra space
Each size is available in 3 Mil thickness, providing lightweight yet durable protection for your items.
What types of clear poly bags do you offer?
At SupplyLand, we offer the following clear poly bag options to suit your business needs:
- Flat Poly Bags: Clear, lightweight, and economical for general-purpose packaging
- Reclosable Poly Bags: Ideal for keeping products secure with a built-in zipper
- Self-Sealing Poly Bags: Designed for quick and easy packing with an adhesive seal
- Slider Zip Bags: Perfect for shipping small electronics, auto parts, snacks, etc.
- Heavy-Duty Poly Bags: Available in thicker mils for extra protection
Each option ensures your items stay protected during transit or storage.
What are the main features of your poly bags?
Our poly bags are made from high-clarity 100% virgin polyethylene, providing excellent protection from dust, dirt, and moisture. They feature heat-sealed side and bottom welds for added durability. These bags are also available in a range of thicknesses from 1 mil to 4 mil, offering flexibility for various packaging needs.
Are your poly bags FDA and USDA approved?
Yes! Our poly bags meet FDA and USDA specifications for food contact, making them ideal for packaging food, snacks, and other consumables safely.
Are poly bags environmentally friendly?
Our poly bags are made from recyclable materials and are reusable for certain applications, helping to minimize waste. However, it's important to check local recycling guidelines for proper disposal.
How durable are your poly bags?
Our poly bags are highly durable, featuring strong heat-sealed seams to withstand rough handling. They protect products from moisture, dust, and other contaminants, making them perfect for shipping items like clothing, electronics, and food.
How do I seal poly bags?
All our bags are heat-sealable. To ensure a secure and tight closure, you can use twist ties, bag tape, or impulse sealers.
What are the thickness options for poly bags?
Our poly bags are available in different thicknesses to suit your packaging needs:
- 1 mil: Lightweight protection for delicate items
- 2 mil: Great for general use, offering a balance of protection and flexibility
- 3 mil: Provides extra durability for heavier products
- 4 mil: Ideal for protecting bulky or fragile items
What does "mil" mean in poly bags?
"Mil" refers to the thickness of the poly bag, with one mil equal to one-thousandth of an inch (0.001"). A higher mil number indicates a thicker, more durable bag, while a lower mil number signifies a lighter, more flexible bag. For example, 1 Mil bags are lightweight, while 4 Mil bags offer extra protection for heavier or bulkier items.
How do I mail poly bags?
Place your items inside the poly bag, seal it securely, and apply the appropriate shipping label or postage. For lighter packages, you can use standard mail; for heavier items, you may want to use a shipping service.
Are your poly bags moisture-resistant?
Our polyethylene bags protect against moisture, dust, and dirt, keeping your products safe during transit or storage.
Can I use poly bags for industrial products?
Our strong poly bags and wholesale plastic bags are ideal for industrial products. They work well for small machine parts and electrical components. Their strong construction ensures they can handle tough environments.
Explore SupplyLand’s Poly Mailers
Looking for something more colorful? Check out our poly mailers for a fun and protective way to ship products like clothing, electronics, and accessories. Bright, moisture-resistant, and reliable, they ensure your items arrive in perfect condition!
Why Choose SupplyLand?
At SupplyLand, we’re passionate about providing the best packaging solutions for your business. From poly bags and mailers to corrugated boxes and tape, all your shipping needs are covered. Take advantage of bulk pricing, fast shipping, exclusive deals, and complimentary gifts on orders over $150!

