What's in the box:

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

This vent is silent and will not disturb your rest, and will also help improve the air condition in your RV.

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:F118mm(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(-)

Specifications:
Color: White
Material: ABS
Voltage:12V
Speed: 1800 rpm
Air volume: 60CFM
Installation: roof mounted
Item size: 135 * 135 * 100mm / 5.3 * 5.3 * 3.9in
Item weight: 608g / 1.3lb
Package size: 290 * 180 * 130mm / 11.4 * 7.1 * 5.1in
Package weight: 785g / 1.7lb

Packing List:
1 * 12 Volt RV Roof Air Vent Fan
5 * Screws