Whatman 1821-042 Filter Circles, 42.5mm Dia, Binder Free Grade GF/B, 100/pk (PN:1821-042)
Glass Microfiber Binder Free Grade GF/B circles, 42.5 mm, 100/pk. Three times thicker than GF/A with higher wet strength and significantly increased loading capacity. Combines fine particle retention with good flow rate.
Specifications
| air-flow-rate | 12 s/100 ml/in2 |
|---|---|
| brand | Whatman |
| diameter-cm | 4.25 |
| diameter-mm | 42.5 |
| grade | GF/B |
| iw-tremont-equivalent | B4250 |
| lead-time | 5 |
| list-price | 116.79 |
| manufacturer-part-number | 1821-042 |
| model | Grade GF/B |
| part-number | 8121-042 |
| pore-size | 1 |
Shipping
Free US FedEx Ground shipping is for online orders greater than or equal to $500 if the item weighs less than 100lbs (actual and dimensional weight) and is inside of the contiguous United States (excluding Hawaii and Alaska).