Product details:

Energy efficient at only 45-66 watts Super quiet operation Thermally protected motor Meets all electrical codes 4" inlet and outlet This fan can handle a wide range of situations. Designed to move large quantities of air from drain tile systems or gravel. With a max suction of 1.9"WC this not recommended for tight soil conditions. Replaces discontinued model XP201c.Energy efficient at only 45-66 watts
Super quiet operation
Thermally protected motor
Meets all electrical codes
4" inlet and outlet