Pond Wise, Inc. Pressurized Filters MultiBay Filters MultiChamber Filters Vortex Filters Quarantine/Holding System UltraViolet Clarifiers Filter Media In Pond Filters NEXUS Systems NEXUS Accessories Nexus Accessories Nexus Add-On's Air Pumps Pond Sieve Books		Nexus 200 Lid $155.00 The Lid for the NeXus System is very sturdy and strong and is now manufactured in a single piece, providing more strength and regidity. Provides complete coverage of the filtration system.   Nexus 300 Lid $175.00 The Lid for the NeXus System is very sturdy and strong and is now manufactured in a single piece, providing more strength and regidity. Provides complete coverage of the filtration system.   OP300-325 $39.00 Oriface Plate for Nexus 200 system. Required when using The Answer in the Nexus system.   OP300-410 $39.00 Oriface Plate for Nexus 300 system. Required when using The Answer in the Nexus system.   OP200-325 $39.00 Oriface Plate for Nexus 300 system. Required when using The Answer in the Nexus system.   Foam Cylinder $79.75 Foam Cylinder for NEXUS, Gravity or Pump   Foam Block $19.00 Foam Block for NEXUS - Pump Fed Only   Nexus 200 Pump Converter $50.00 Nexus 200 Conversion Kit to Pump Fed System   Nexus 300 Pump Converter $75.00   Gravity Convertor-200 $35.00 Nexus 200 Upgrade kit for gravity fed systems.   Gravity Convertor-300 $40.00 Nexus 300 Upgrade kit for gravity fed systems.   Nexus 200 Polisher/Backwash $125.00 Water Polisher and air backwash kit for the Nexus 200. For additional information and technical specifications, please visit www.evolutionaqua.com.   Nexus 300 Polisher/Backwash $125.00 Water Polisher and air backwash kit for the Nexus 300. For additional information and technical specifications, please visit www.evolutionaqua.com.