Leaf Net Winter Pool Cover for a 18' x 36' Rectangle Pool (Cover is 22' x 40') Leaf Net Cover for a 18' x 36' Rectangle Pool (Cover is 22' x 40') Leaf net over your winter cover this fall and make spring opening quick and easy. This leaf nets mesh traps leaves before they reach your winter cover. Simply lay the Leaf Net on top of your winter cover when you close your pool and remove it when filled with debris. Your cover will be virtually leaf free and spring clean-up will be a snap. Eliminates that messy swamp of decaying leaves!