L |
| Lead Acetate Paper, 10 books per pack |
| Litmus Blue Paper, 10 books per pack |
| Litmus Blue Paper, 4 x 25 strips |
| Litmus Blue Paper, 5m reel |
| Litmus Neutral Paper, 10 books per pack |
| Litmus Red Paper, 10 books per pack |
| Litmus Red Paper, 4 x 25 strips |
| Litmus Red Paper, 5m reel |