4" gold suction dredge The dredge comes with everything in photos. Suction nozzle is 4" made from steel with an ring reducer in the nozzle and grizzly bars to prevent plug ups. Venturi outlet is reduced from 1.5" to 1/2" to create plenty of pressure to create suction and doesn't penetrate into nozzle this further reduces plug ups.the top of the sluice box starts with a classifying screen and large riffles to catch nuggets and is based on an old design which is great for fine gold recovery being a delta shape the pay has time to classify and settle out gold into expanded mesh riffles in the rest of the box and artificial grass recovery mats. pump is a condor 1 and a 1/2 inch high pressure pump with a 60m head which is driven by a near new 6.5 hp lifan motor (Honda copy) it has a large fuel tank with sight gauge on top. comes with all hoses for pump which are all in good condition and no holes. Pump intake filter is large to make sure pump won't be starved of water. crevice blaster nozzle attaches by cam lock fittings on pump hose for loosening hard pack gravels.extras include: a crevice tool,rope, mask and snorkel, two spare rubber coupling bushes, new spare spark plug,trolley for pump. great set up with loads of hrs in the design and build ready to pay for itself just point it to the gold!!!