This is a "lattice lid" for square plastic water collecting trout.
Allows drains to flow directly into the trout.
Excellent chemical resistance Made of reinforced polypropylene for superior chemical resistance.
Outer Dimensions: 12.4 x 0.7 inches (315 x 17 mm) (center part H24 mm)
Color: White
Weight: 3.0 lbs (1.4 kg).
Made in Japan
The same standard as Sanko (Manko) water collecting trout, Dragonfly Good Home box.