| 5500 Litre SG4 Silt Guardian | cotterillcivils.co.uk | 3696 GBP | — | — |
| 10,000 Litre W3S120 Vehicle Wash Down Separator | cotterillcivils.co.uk | 3570 GBP | — | — |
| 10,000 Litre W2S120 Vehicle Wash Down Separator | cotterillcivils.co.uk | 3234 GBP | — | — |
| NSB18 Bypass Separator 10000 SQM | cotterillcivils.co.uk | 2604 GBP | — | — |
| 3000 Litre GS4 Grease Separator | cotterillcivils.co.uk | 2430 GBP | — | — |
| 3000 Litre SG3 Silt Guardian | cotterillcivils.co.uk | 2356.8 GBP | — | — |
| 10,000 Litre Oaklands Environmental Rain Harvesting Tank | cotterillcivils.co.uk | 2130 GBP | — | — |
| 5000 Litre W1S60 Vehicle Wash Down Separator | cotterillcivils.co.uk | 2100 GBP | — | — |
| NSB15 Bypass Separator 8333 SQM | cotterillcivils.co.uk | 2004 GBP | — | — |
| 8000 Litre Oaklands Environmental Rain Harvesting Tank | cotterillcivils.co.uk | 1956 GBP | — | — |
| 5000 Litre W3S60 Vehicle Wash Down Separator | cotterillcivils.co.uk | 1938 GBP | — | — |
| 2010 Litre GS3.5 Grease Separator | cotterillcivils.co.uk | 1902 GBP | — | — |
| NSB12.5 Bypass Separator 6940 SQM | cotterillcivils.co.uk | 1882.8 GBP | — | — |
| NSB10 Bypass Separator 5555 SQM | cotterillcivils.co.uk | 1752 GBP | — | — |
| 6000 Litres Water Holding Tank with Lid - Above & Below Ground | prolinedirect.co.uk | 1672.5 GBP | — | — |
| 3000 Litre W3S36 Vehicle Wash Down Separator | cotterillcivils.co.uk | 1554 GBP | — | — |
| 1800 Litre SG2 Silt Guardian | cotterillcivils.co.uk | 1524 GBP | — | — |
| 2500 Litre Cabin Effluent Tank | prolinedirect.co.uk | 1498.5 GBP | — | — |
| NSB8 Bypass Separator 4444 SQM | cotterillcivils.co.uk | 1488 GBP | 0 GBP | — |
| 1800 Litre GS3 Grease Separator | cotterillcivils.co.uk | 1468.8 GBP | — | — |
| Oak Tank 10000 Litre with Lid - Above Ground Only | prolinedirect.co.uk | 1455 GBP | — | — |
| 4500 Litres Water Holding Tank with Lid - Above & Below Ground | prolinedirect.co.uk | 1314 GBP | — | — |
| Oak Tank 8000 Litre with Lid - Above Ground Only | prolinedirect.co.uk | 1305 GBP | — | — |
| NSB6 Bypass Separator 3333 SQM | cotterillcivils.co.uk | 1262.4 GBP | 0 GBP | — |
| NSB4.5 Bypass Separator 2500 SQM | cotterillcivils.co.uk | 1231.2 GBP | 0 GBP | — |
| NSB3.5 Bypass Separator 1944 SQM | cotterillcivils.co.uk | 1210.8 GBP | 0 GBP | — |
| 1000 Litre SG1 Silt Guardian | cotterillcivils.co.uk | 1194 GBP | — | — |
| Oak Tank 6000 Litre with Lid - Above Ground Only | prolinedirect.co.uk | 1125 GBP | — | — |
| 2000 Litre W2S24 Vehicle Wash Down Separator | cotterillcivils.co.uk | 1074 GBP | — | — |
| 3400 Litres Water Holding Tank with Lid - Above & Below Ground | prolinedirect.co.uk | 1072.5 GBP | — | — |
| 1000 Litre GS2 Grease Separator | cotterillcivils.co.uk | 1002 GBP | 0 GBP | — |
| Oak Tank 5000 Litre with Lid - Above Ground Only | prolinedirect.co.uk | 975 GBP | — | — |
| 350 Litre JUMBO 2 Grease Trap | cotterillcivils.co.uk | 910 GBP | — | — |
| 600 Litres GS1 Grease Separator | cotterillcivils.co.uk | 876 GBP | — | — |
| 1000 Litre W1S12 Vehicle Wash Down Separator | cotterillcivils.co.uk | 752.4 GBP | — | — |
| 2250 Litres Water Holding Tank with Lid - Above & Below Ground | prolinedirect.co.uk | 600 GBP | — | — |
| 250 Litre OEGT2 Grease Trap | cotterillcivils.co.uk | 594 GBP | — | — |
| 2150 Litres Water Holding Tank with Lid - Above & Below Ground | prolinedirect.co.uk | 559.5 GBP | — | — |
| 3500 Litre Open Top Water Holding Tank | prolinedirect.co.uk | 525 GBP | — | — |
| 180 Litre JUMBO J1 Grease Trap | cotterillcivils.co.uk | 518 GBP | — | — |