| Qualitative Filter Paper, Grade 237, Ahlstrom, Closely equivalent to Grade No. 3, Whatman (15) |  |
| Qualitative Filter Paper, Grade 601, Ahlstrom, Closely equivalent to Grade No. 1, Whatman (22) | |
| Qualitative Filter Paper, Grade 610, Ahlstrom, Closely equivalent to Grade No. 5, Whatman (20) | |
| Qualitative Filter Paper, Grade 631, Ahlstrom, Closely equivalent to Grade No. 4, Whatman (19) | |
| Qualitative Filter Paper, Grade 642, Ahlstrom, Closely equivalent to Grade No. 2, Whatman (20) | |
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We only sell & ship chemicals to businesses at commercially zoned locations verified by 3rd party sources. A business at a residence will not be able to buy or receive chemicals at that location. Such businesses will not be able to divert shipment in order to meet our policies. No exceptions.