Yamitsu Small Plastic Vortex Unit Ref: YANPVS Height: 27 " Diameter (including lip): 16.5" Feed and return diametre: 3" Provision for waste 40mm Distance between base and centre of inlet pipe is: 8.5" Distance between base and centre of exhaust pipe is: 23" It is suitable for flow rates of up to 900 gallons per hour. Price: £45.67 (Including VAT at 20%)