This was to replace the 'same' unit I originally bought at Lowe's. The unit when it arrived was half the weight of the sturdy ABS plastic of the original model. When I inspected the unit it had no instructions other that the minimal ones on the flimsy box.When I opened the top (lint trap door) to examine the float (which is made of an even lighter cheaper plastic, unlike the original which was made of the same durable ABS), the hinges promptly snapped.This is a terrible, cheap, poorly made knock-off of the original high quality, well designed orignal. Don't waste your money here, find the original, should be more like 5 pounds, not 2 pounds.Super-Efficient Dryer Vent Saves You up to 10% on Energy Costs