Best mesh cover for rainy climate · Best for: Heavy-duty winter mesh cover for inground pools — Micro Mesh construction with 5-ft overlap, drains rain and meltwater through so no cover pump needed. Heavy-duty build tolerates heavy snow, high wind, and cold temps. 25x45ft rectangle at $174.99. NOT ASTM F1346 certified — this is a debris / winter cover, NOT a child-safety cover. For ASTM F1346-rated covers that prevent drowning, see Loop-Loc.