Product review (1 stars): Save  your money
Unless your LG dryer opening lines up perfectly with the exterior vent hole, you may not gain any space at all..and might as well continue to vent from the rear in that case.  The company will not accept a return after 30 days, so don't waste any time before deciding to ship it back to them.  I see it has dropped in price $20 since I bought it, so be sure to keep your receipt in case you manage to return it in time!