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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🧬 Seal your science with confidence and style!

INVISIBLE SHIELD - Colorless, transparent film maintains clear visibility of contents
ADAPTIVE SEAL MASTERY - Clings seamlessly to irregular shapes for flawless coverage
DATA INTEGRITY GUARDIAN - Reduces risk of tampered data with secure, tamper-evident film
VERSATILE LAB ESSENTIAL - Perfect for all-purpose laboratory use with reliable stretch and moldability
MOISTURE LOCK TECHNOLOGY - Prevents moisture and volume loss to preserve sample integrity

Pechiney Plastic Packaging PM999 - Parafilm M is a high-performance, colorless thermoplastic laboratory film measuring 4" x 250'. Engineered in the USA, it offers two-way stretch for secure sealing around irregular surfaces, prevents moisture loss, and reduces tampering risks, making it an indispensable tool for professional labs seeking reliable sample protection.

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Brand	Parafilm
Manufacturer	canon
Country of Origin	USA
Model number	PM999
Number of Memory Sticks	1
Item Weight	907 g
Product Dimensions	13.34 x 10.8 x 12.7 cm; 907.18 g
Item model number	PM999
Item Height	5 Inches
Item Width	4.25 Inches
Compatible Device	Camera
Are batteries included?	No

Pechiney Plastic Packaging PM999 - Parafilm M all-purpose laboratory film, size: 4" X 250' EACH

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