Transparency Turbidity Tube with Secchi Disk, 60 cm Clothing Feature Specification Manufacturer Penn-Plax® Model

Feature Specification Manufacturer Penn-Plax® Model B11 Product Type Automatic Battery Back-Up Air Pump Power Source 2 × D-cell batteries (not included) AC Connection Detects power outages only (does not power or charge the pump) Automatic Operation Yes Manual Operation Yes Maximum Aquarium Size Up to 55 gallons (208 L) Operating Time Up to 48 hours (depending on battery quality) Air Outlet Single Dimensions Approximately 6 × 3

Rugged rubber armoring provides a sure grip

Unlike conventional paper

and reused many times

Switches off automatically when AC power is restored

Transparency Turbidity Tube with Secchi Disk, 60 cm Clothing Feature Specification Manufacturer Penn-Plax® ModelProduct Code: 77291 MPN: PH112014860SPR The Turbidity Tube with Secchi Disk is a simple, portable instrument used to estimate water turbidity by measuring the depth at which a black and white Secchi pattern is no longer visible through a water column. Designed for field and laboratory use, the tube provides a quick and economical method for assessing water clarity in lakes, rivers, ponds, reservoirs, aquaculture facilities, and environmental