WKM Parafilm M Roll All-Purpose Laboratory Film, 4" x 250' on 1" Core test tube 25 x 150mm users can guarantee that the

users can guarantee that the measurements taken reflect the true pH levels of the sample being tested

Dimensions (mm) : 300( L) x 175(B) x 75(H)

Near or on the surface of the metal plate

having an accurate TDS meter can help consumers assess whether their water is safe for consumption

WKM Parafilm M Roll All-Purpose Laboratory Film, 4" x 250' on 1" Core test tube 25 x 150mm users can guarantee that theparafilm tape Brand: WAXFILM Features: Practically Colorless Size: 4 inch x 125 feet Flexible, moldable, self sealing, odorless, moisture resistant Thermoplastic, semitransparent Country of Origin: USA Best Price, Best Quality, Fast & Free Shipping Part Number: KTN287 Details: Features: Flexible mold able self sealing odorless moisture resistant thermoplastic semi transparent practically colorless size, 4 inch x 125 feet. Package Dimensions: 5. 9 x 3.