100cm Transparent Turbidity Tube with Secchi Disk Included_Outlet Adjustable clamp pulley with a

Adjustable clamp pulley with a 2-inch metal sheave that rotates fully through 9 inches of height adjustment

Pack of 10 polypropylene stoppers fits 24/29 sockets for sealing ground joint vessels with chemical and impact resistance

this set covers the mid-range bench volumes with raised graduations and tapered pouring spouts

Demonstrates eddy-current braking as circular magnets swing over a 4

breaking its own circuit to a 12V halogen bulb as heat bends the strip

100cm Transparent Turbidity Tube with Secchi Disk Included_Outlet Adjustable clamp pulley with aMeasures water clarity in lakes, streams, and ponds using an alternating black and white Secchi disc visible through the clear 100cm tube during turbidity sampling.