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

Product ID: 14862897

Details

Brand
Parafilm
Exposures per Roll
12
Film Color
Color
Film Format Type
Parafilm
Model Name
M PM999

🌀200% stretchability at 21°C

📏4" x 250' stretch length

🧴Chemical resistant seal

R2137

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Description

🧪 Seal smarter, stretch further, and protect like a pro!

CHEMICAL SHIELD - Protects samples from air, gases, alcohols, acids, and mild alkalies with reliable resistance.
DURABLE FLEXIBLE - Twist and fold without rupturing—built to handle sharp edges and complex shapes.
LONG LASTING SUPPLY - Generous 250-foot roll ensures you’re stocked for countless projects and experiments.
INSTANT SELF ADHESION - Bonds to itself immediately—no adhesives needed, no mess, just seamless sealing.
UNMATCHED STRETCH SEAL - Expands up to 200% for a perfect, airtight fit every time.

Parafilm M PM999 is a premium semi-transparent laboratory sealing film measuring 4 inches by 250 feet. Engineered in the USA, it stretches up to 200% at room temperature, sticks instantly to itself, and resists a wide range of chemicals, making it the go-to choice for securely sealing culture tubes, flasks, and lab vessels. Its durable, flexible design withstands repeated folding and twisting without tearing, ensuring airtight protection for your samples and experiments.

Specifications

ASIN	B006RA7HFS
Best Sellers Rank	#60,296 in Office Products ( See Top 100 in Office Products ) #92 in Stretch Film
Brand	Parafilm
Built-In Media	1 roll of PM999 Parafilm® M All-Purpose Laboratory Film in cardboard dispenser
Compatible Devices	Camera
Customer Reviews	4.5 4.5 out of 5 stars (152)
Exposure Count	12
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
Media Type	ProductImage
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
Warranty Description	1 year manufacturer
Water Resistance Level	Water Resistant

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R2137

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

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