CHEMSOLUTE Universal pH-indicator paper, pH 1-14, 5m x 7mm, Refill pack with 3 rolls Back Catalog number: 2814-3ROLL Availability: In the manufacturer's stock Price on request - + Recommended SE300 Double junction orp platinum electrode SE300 Price on request MA916B/3 Combined glass pH electrode, refill, BNC, 3m Price on request MA913B/3 Combined Epoxy pH electrode MA913B/3 Price on request