| | | Lenz‑Laborglas Filter Plate, 40 mm Diameter, Porosity 3, Centered Rim, Not Fused | | | | | |
| | | Lenz‑Laborglas Filter Plate, 30 mm Diameter, Porosity 3, Centered Rim, Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 30 mm, Porosity 4 Centred, Rim Not Fused
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| | | Lenz-Laborglas Filter Plate 30 mm, Porosity 2 Centred, Rim Not Fused
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| | | Lenz-Laborglas Filter Plate 20 mm, Porosity 2 Centred, Rim Not Fused
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| | | Lenz-Laborglas Filter Plate 40 mm, Porosity 0 Centred, Rim Not Fused
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| | | Lenz-Laborglas Filter Plate 40 mm, Porosity 2 Centred, Rim Not Fused
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| | | Lenz-Laborglas Filter Plate 10 mm Porosity 4 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 40 mm Porosity 4 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 20 mm Porosity 4 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 60 mm Porosity 3 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 20 mm Porosity 3 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 10 mm Porosity 3 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 50 mm Porosity 1 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Disc 60 mm Por.4 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 50 mm Por.4 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 50 mm Por.2 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 60 mm Por.2 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 50 mm Por.3 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 60 mm Por.1 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 30 mm Por.0 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Disc 50 mm Por.0 Borosilicate Glass 3.3 | | | | | |
| | | Lenz-Laborglas Filter Plate 40 mm Porosity 1 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plates 60 mm Porosity 0 Centred Rim Not Fused Pack of 10 | | | | | |
| | | Lenz-Laborglas Filter Plate 20 mm Porosity 0 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 10 mm Porosity 0 Centred Unmelted Rim | | | | | |
| | | Lenz-Laborglas Filter Plate 10 mm Porosity 1 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 30 mm Porosity 1 Centred Rim Not Fused | | | | | |
| | | Lenz-Laborglas Filter Plate 20 mm Porosity 1 Centred Rim Not Fused | | | | | |