Arrow Tank Company - Products Products Custom Wood TanksRound, half-round, elliptical, conical, square or rectangular tanks with wood or concrete bottoms, open or closed tops... longevity and budget considerations. Custom Wood Hot TubsManufactured to the same high standards as our storage and process tanks. Round, elliptical or conical hot tubs are available.... Especially useful for transmission of water in remote area or uneven terrain. DegasifiersCabinet units for scrubbing process gases prior to discharge. Our degasifiers are custom...