Besides the length, what is the difference between 4" x 125' and 4" x 250' on 1" core?

To my knowledge the only difference between the two is the amount of Parafilm on each roll. Both are 4"wide, and both have a center hole or 'core' of 1" But one has 125 feet and the other has 250 feet per roll. It also comes in a narrower roll, I believe about 2" wide, which is what I have. I hope this helps, but perhaps contacting the manufacturer would provide a more definitive answer, in the event that I am missing something.

What does pm999 mean? are there different grades or types of parafilm? does the number refer to the size of the tape , or its permeability?

PM999 is the model number. We offer three different sizes of parafilm: 2” x 250’ (Model # PM992), 4” x 125’ (PM996) and 4” x 250’ (PM998).

Please can anyone tell me if it comes in the cardboard box dispenser the 4"250' core?

Mr. Cappello: I purchased the 4" x 125' roll. The box, on the top; Dispense Parafilm Through This Opening. On the side says; For Use In Your Dispenser. At the bottom on the side; a slot says 'pinch here' for a dispensing slot. The Parafilm must be cut, the size you need, off anyway. So, the box works fine for me.

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M PM999 All-Purpose Laboratory Film, 4" x 250' on 1" Core

Product ID: 381712091

Details

Brand
Parafilm
Compatible devices
Camera
Film colour
color
Film format type
Parafilm
Model name
M PM999

💪200% stretch without rupture

📏4" x 250' ultra-long roll

🧴Resists acids, alcohols & gases

€ 133.84

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Description

🧪 Seal your success with Parafilm M — the lab essential that never quits!

CHEMICAL SHIELD - Defends against air, gases, alcohols, most acids, and mild alkalies to keep your samples pristine.
EXTENDED COVERAGE - Generous 250-foot length ensures you never run out mid-experiment—perfect for high-volume labs.
INSTANT SELF SEALING - Bonds instantly to itself, creating airtight seals that protect your critical samples from contamination.
UNMATCHED FLEXIBILITY - Fold, twist, and stretch without tearing—engineered for durability in demanding lab environments.
PREMIUM US MADE QUALITY - Crafted in the USA with precision and reliability trusted by professionals worldwide.

Parafilm M PM999 is a semi-transparent, all-purpose laboratory sealing film measuring 4 inches by 250 feet. It stretches up to 200% without rupturing, instantly self-adheres, and protects samples from air, gases, alcohols, most acids, and mild alkalies. Made in the USA, it’s the trusted choice for securely sealing culture tubes, flasks, petri dishes, and more.

Specifications

ASIN	B006RA7HFS
Audio Recording	No
Brand	Parafilm
Built-In Media	1 roll of PM999 Parafilm® M All-Purpose Laboratory Film in cardboard dispenser
Compatible Devices	Camera
Customer Reviews	4.4 4.4 out of 5 stars (146)
File Format	120
Film Color	color
Film Format	Parafilm
Global Trade Identification Number	00734655769998
Item Weight	2 Pounds
Lighting Type	Daylight
Manufacturer	Bemis
Manufacturer Part Number	PM999
Model Name	M PM999
Model Number	PM999
Number of Items	1
Number of Packs	1
Roll Quantity	1
Screen Size	10 Centimeters
UPC	734655769998
Unit Count	1 Count

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€ 133.84

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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