Forced Oil Circulation - improved efficiency and durability. 1/4 in, 3/8 in, 1/2 in flare inlet ports. Internal Check Valve - prevent oil backflow.
Lifting Hook - safe & convenient for rooftop use. Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.