12.0V RV Trailer Roof Air Ventilation Round Vent RV Vent Fan Top Loading Air Vents Campers Travel Trailer

Features:
Perfect fan for car, truck, tent, RV, sleeper cab, SUV, ATV, delivery van,etc.
Provide a freshs air environment.
Dust cover design,effectively prevents the dust.
Adjusatble height to fit your different installation requirements.
Top mounting typed, which is space-saving.
Installation:
Opening size:Φ118mm(the extension pipe can use a hose with an inner diameter of 120mm or a PVC pipes with a diameter of 110mm)
Out of the roof:height-53mm
Installation thickness: 80-160mm adjustable
Connection:Red wire(+);Black wire(-)