Model 1000-S (Standard) by admin · September 24, 2018 Precast Drawings Septic Tanks Model 1000-HS20C1 Model 1000_HS20C1 Lid Top View Model 1000-S2C (Standard Two Compartment) Model 1000-LP (Low Profile_ Model 1250-S2C (Standard Two Compartment) Model 1500-S2C (Standard Two Compartment) Model 1500-S2C with Heavy Duty Cover Model 2000-S2C (Standard Two Compartment) Click Drawing Below for Larger, Sharper View in PDF File.