Micro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 - 12 pH, Single Roll Single Roll, 1 - 12 pH auspowers_batchtwo the upper diameter is 5

the upper diameter is 5

providing the best products and service to all users

EPDM rubber (Neoprene) is an extremely durable synthetic rubber membrane

The wood used to craft this mill is sourced from local PEFC™-certified forests

It is tough and soft make you can't feel it

Micro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 - 12 pH, Single Roll Single Roll, 1 - 12 pH auspowers_batchtwo the upper diameter is 5Micro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 12 pH, Single Roll This Hydrion pH paper is in a single roll dispenser, and has a wide range from 1 12. It is in a plastic case which accommodates a single 15ft roll of paper, as selected. The Hydrion wide range papers show a distinct change for each full pH unit. The pH color chart is printed on the side of the case. Range: 1 12. 1 Roll Dispenser; 10 Dispensers Carton.