anchor.diff:  	desc = "Filters out chemicals by their NTDB ID."
   	id = "plumb_filter"
   	build_type = PROTOLATHE
  -	materials = list(MAT_METAL = 1000, MAT_GLASS = 500)
  +	materials = list(/datum/material/iron = 1000, /datum/material/glass = 500)
   	construction_time = 75
   	build_path = /obj/machinery/plumbing/filter
   	category = list("Misc","Medical Designs")
  
positive.code: 	desc = "Ducts for plumbing! Now lathed for efficiency."
  	id = "duct_print"
  	build_type = PROTOLATHE
  	materials = list(MAT_PLASTIC = 400)
  	construction_time = 5
  	build_path = /obj/item/stack/ducts
  	category = list("Misc","Medical Designs")
  	departmental_flags = DEPARTMENTAL_FLAG_MEDICAL | DEPARTMENTAL_FLAG_SCIENCE
  
negative.code: 	desc = "You can set a list of allowed reagents and amounts. Once the chamber has these reagents, will let the products through."
  	id = "reaction_chamber"
  	build_type = PROTOLATHE
  	materials = list(/datum/material/iron = 1000, /datum/material/glass = 500)
  	construction_time = 75
  	build_path = /obj/machinery/plumbing/reaction_chamber
  	category = list("Misc","Medical Designs")
  