Secchi Disc, Black and White, with 20m Line
Product Code #171-CL
Used to determine turbidity or degree of visibility in natural waters. The 20 cm (8″) diameter black and white discs come with 3/4 lb lead weights. Includes 20m calibrated line.
Product Code #171-CL
Used to determine turbidity or degree of visibility in natural waters. The 20 cm (8″) diameter black and white discs come with 3/4 lb lead weights. Includes 20m calibrated line.