Urinalysis Demonstration Fluid with Phosphates, 500mL Glass Funnels_Dropping Funnels Single-pole double-throw switch on a

Single-pole double-throw switch on a demonstration base

the deeper body extending the visible refraction path for ray-box and Snell's law refraction studies

5 mm inner profile

5-inch height for free-spinning compass and magnetometer demonstrations

Flat-bottom narrow-neck boiling flask in autoclavable borosilicate glass holds 3000mL for large-volume heating

Urinalysis Demonstration Fluid with Phosphates, 500mL Glass Funnels_Dropping Funnels Single-pole double-throw switch on aPhosphate spiked 500mL of urinalysis demonstration fluid, simulating elevated phosphate urine for pH, color, and clarity testing during clinical laboratory technique training without real samples.