Home Technical designs D407 Institutional Latrine (Desludgeable) Design and BoQ D-407 Desludgable Toilet.dwg D407 Institutional Latrine BOQ.xlsx D407-2025A Post Emergency Institutional Latrine (Desludgable) Design and BoQ (UNHCR, 2025).pdf Previous D406 Urine Diverting Dry Toilet Design and BoQ Next D408 Institutional Pour Flush Latrine Design and BoQ