House Drainage System Model - Plastic, 20x15x10 Cm, Pink | Sturdy Wooden Frame, Ideal For Nursing Student Training, Well-labeled Components

Insanitary Well Model - Composite Material, 15x10x5 cm, Brown | Educational Model for Nursing Students, Sturdy Wooden Frame, Illustrated Literature

Deep And Shallow Well Model

Activated Sludge Process Model

Septic Tank Latrine Model

Smokeless Chulha Model

Insanitary Well Model - Durable Plastic and Synthetic Materials, Compact Tabletop Size, Brown and Blue Finish, Textured Earthen Design, Educational Display Model

House Drainage System Model - High-Quality Plastic & Metal, Compact Rectangular Design , Pre-Assembled Educational Teaching Tool for All Ages

Activated Sludge Process Model

Smokeless Chulha Model - Metal Body with Stainless Steel Vessels, Standard Size in Bright Red, Compact and Lightweight for Efficient Cooking and Heating