The RV Cover Rescue gutter spout covers works on any length RV since each pair installs side-to-side: one set for the front, one for the back. Finally, a real solution to an old problem! No need to balance on a ladder. Easy to install and stays put! Slide the covers over each gutter spout and adjust the tension in the connector strap to secure them in place. Then install your RV cover with peace of mind, knowing that your spouts will no longer damage your RV cover. If your air conditioner or other rooftop accessories are too far from the end of the RV to use the provided strap, the gutter spout cover system is easily adaptable. Just make a loop from nylon cord (not included) that is long enough to go around the roof accessory and extend the cord to 3' from the end of the RV. Lace the product straps through the loop to make a "V". Or, simply extend the length of the provided 15' strap with nylon or polypropylene straps with quick release buckles. Protects gutters | Mh57 Products Inc MH57 Products Adjustable RV Cover Gutter Spout Protectors