These chemical-resistant polypropylene tanks feature heavy-duty wall construction for liquids with specific gravity of 1.5. Tank tops come equipped with an integral pump mounting platform rated to 240 lb (113 kg) — easily mount heavy metering pumps or mixers directly on to the tank lid. Tanks come standard with an 8" vented twist-on lid, 1" or 2" NPT(F) spinwelds, plus a pump suction connection for 3/8" OD tubing, or 1/2" OD tubing when grommet is removed.