Whirl Pak® Bags, Black, Write-On, 55 oz. Rain Jackets and water quality studies

and water quality studies

Genuine YSI replacement carrying case for Professional Series instruments

Free chlorine is the active form of chlorine used for disinfection of drinking water

Programmes up to 24 automatic feedings every 24 hours

Whirl Pak® Bags, Black, Write-On, 55 oz. Rain Jackets and water quality studiesProduct Code: B01558WA 55 oz. Capacity, 7. 5" x 11. 75", 4. 0 mil Wall When it is necessary to protect a sample from light, the Whirl Pak black bag is specially designed for this application. The polyethylene film is made from pigmented resins so the black color is an integral part of the bag and not a printed layer. The result is an opaque bag providing maximum protection for samples that are sensitive to light. It is ideal for pharmaceuticals,