For oil, diesel fuel, water, boat, home and car. 1-1/2" diameter. For routine pumping jobs and more. Use for bilges, sump tanks, oil crankcase changing. Comes with kit of tubes, hoses, reducing foot and adapter. Tough marine plastic, will not corrode. Non-sparking and requires no priming. Item 12PC has 1/4" and 1/2" intake tubes that will remove oil from engines. Model 16PC has 36" long 1/2" rigid tubing, 36" long 1/4" semi rigid tubing with adapter, 2' flexible hose for water and red discharge hose for oil.