What's a good product to use the smaller ones with? Amazon sell anything good?

You question makes no sense at all.

If needed, can these be cut to fit a specific size of funnel? Or would I be better off just buying some of the square filters and cutting those?

Buy the correct size for your Buckner funnel; if you are using a gravity funnel, look up how to fold round filter paper for this type filter.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Whatman 1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100)

Whatman 1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100)

Product ID: 121189320

🌍Versatile use across multiple industries

📏4.25 cm precise diameter

🧪Grade 1 purity for lab-grade filtration

Description

🧪 Elevate your lab game with Whatman – where precision meets versatility!

COMPACT LIGHTWEIGHT - At just 4.54g and 4.25cm diameter, it fits seamlessly into any lab setup without bulk.
EDUCATIONAL ESSENTIAL - A go-to tool for teaching qualitative analytical separations in classrooms worldwide.
ECO FRIENDLY LAB STAPLE - Made from high-quality paper, combining performance with sustainability.
CROSS INDUSTRY POWER PLAYER - Trusted in food, agriculture, air pollution, and gas detection for reliable results.
PRECISION FILTRATION MASTERY - Grade 1 Whatman paper ensures crystal-clear liquid clarification every time.

Whatman Grade 1 filter paper, sized at 4.25 cm diameter and weighing 4.54 g, is a trusted laboratory staple manufactured by GE Healthcare. Renowned for its high purity and reliable filtration, it serves diverse applications from food industry testing to environmental monitoring and educational labs, making it an indispensable tool for professionals seeking consistent, high-quality results.

Specifications

ASIN	B00394F978
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	111,915 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 28 in Quantitative Filter Paper
Customer Reviews	4.6 4.6 out of 5 stars (6)
Date First Available	5 Nov. 2012
Guaranteed software updates until	unknown
Item Package Quantity	1
Item Weight	4.54 g
Item model number	F1000-1
Manufacturer	GE Healthcare
Material	Paper
Part number	1001-042
Product Dimensions	8.89 x 5.84 x 2.54 cm; 4.54 g

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