Standard Mesh Rectangular Safety Pool Cover 20 x 50 Feet Rayner 140-M20X50 140-M20X50 If safety is your main concern, the Rayner Safety Mesh pool cover is the best choice for you!All Rayner pool covers are individually made using only the best materials. And to provide extra strength and reduce premature wearing, they are fully reinforced (both the top and bottom) with polypropylene nylon webbing. The cover is secured to the deck and held taut on the pool with rust-proof brass anchors and stainless steel springs. To protect the surface of your deck, springs come with vinyl spring covers. The straps have superior D-ring adjustment connections and ends that do not fray!Made from 100 percent polypropylene, this mesh is lightweight yet very strong. With a bursting strength of 350 pounds per square inch, the Safety Mesh cover is strong enough to support children or animals walking on it.Rayner Safety Mesh covers are absolutely maintenance free! Since the mesh allows water to drain through, there is no water to pump off the cover. And without the potential hazard of standing or puddled water, you can simply put on your safety mesh cover and forget about it until spring.All Rayner safety mesh and solid vinyl covers are certified to meet or exceed ASTM F1346-91 specifications. Rayner covers come with a limited lifetime warranty. This cover includes: rubber abrasion strips at each strap, vinyl wear-pad for the protection of inside corners, stainless steel springs with vinyl spring covers, stainless steel D-rings, brass concrete anchors (threaded and slotted), Allen wrench, tamper tool, store bag, heavy-duty installation rod, and installation instructions.