The PFS series features PVC construction with 100 mm (4″) DR 35 outlet pipes (108 mm outside diameter), operating at 1-4 psi for flows from 200 to 1000 L/day. They’re lightweight, freeze-resistant with proper dosing, and require no electricity beyond the pump. Canadian Shield Consultants provides models for various capacities, with easy connections to 4″ PVC gravity lines, ensuring longevity over 20+ years in buried installations compliant with Ontario’s Onsite Wastewater Association standards.