Filter block that can be used on all types of trickling Alter beds with drainage openings 21% of the total area. Cannelton Sewer Pipe .... 100. LABORATORY EQUIPMENT and supplies. Incubators, drying ovens, water stills and other equipment.
|Title||:||The Manual of Sewage Disposal Equipment and Sewer Construction|
|Author||:||Amory Prescott Folwell|