{"product_id":"lifeguard-40-ft-x-100-ft-epdm-pond-liner-45-mil-durable-fish-safe","title":"Lifeguard 40 ft x 100 ft EPDM Pond Liner 45-Mil - Durable Fish Safe","description":"\u003cp\u003eOur review of the Lifeguard 40 ft x 100 ft EPDM pond liner finds it best for DIY pond builders, hobbyist aquaponics users, and landscapers who need a durable, flexible liner that stays dependable year-round. The single biggest reason to buy is the 45-mil EPDM rubber construction, which delivers thicker, more tear- and UV-resistant performance than common vinyl alternatives while being certified safe for koi and other aquatic life. Installation is straightforward for one or two people and the material conforms to shelves and curves without cracking in cold weather.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e45-mil EPDM construction:\u003c\/strong\u003e Offers a thick, puncture- and UV-resistant barrier that holds up better than thinner liners in exposed outdoor installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFish and wildlife safe:\u003c\/strong\u003e Certified by Guardian Systems Inc., suitable for koi ponds, turtles, and aquaponics setups where water quality matters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo plasticizers:\u003c\/strong\u003e Remains flexible year-round and will not become brittle or split like some vinyl liners, improving long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to shape and install:\u003c\/strong\u003e Lays flat and conforms to curves, shelves, and waterfall features which speeds up DIY installations and reduces trimming time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile use:\u003c\/strong\u003e Works for ponds, waterfalls, streambeds, fish hatcheries, and retention basins, making it useful across landscape and agricultural tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis liner is aimed at backyard pond builders, small aquaponics operators, and professional landscapers who want a robust, flexible liner that is explicitly certified safe for fish and wildlife. If you need an option that handles New England winters or other freeze-thaw cycles, the EPDM formulation is a sensible choice.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for tiny decorative liners where cost is the dominant concern or for installations requiring preformed rigid shapes; buyers who need welded seams on-site should plan for professional seam work or specialized adhesives, and heavy machinery for very large retention basins may require alternative logistics.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThick 45-mil rubber provides strong abrasion and UV resistance.\u003c\/li\u003e\n\u003cli\u003eCertified safe for fish and aquatic life, suitable for koi ponds and aquaponics.\u003c\/li\u003e\n\u003cli\u003eStays flexible year-round without plasticizers, reducing risk of cracking.\u003c\/li\u003e\n\u003cli\u003eConforms easily to complex pond shapes for simpler DIY installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavier gauge material can be cumbersome to handle alone and may require freight delivery coordination.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed experiences on puncture resistance depending on site conditions, so careful underlayment is advised.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eEPDM rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e45-mil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e40 ft x 100 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003ePonds, waterfalls, streambeds, hatcheries, retention basins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWildlife certification\u003c\/td\u003e\n\u003ctd\u003eCertified by Guardian Systems Inc.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eLays flat and conforms to curves and shelves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003eShips via freight truck (lift-gate not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Lifeguard 40 ft x 100 ft 45-mil EPDM liner is a practical choice for anyone building a medium to large outdoor pond or aquaponics system who needs long-term flexibility and fish-safe material. It offers good value compared with thinner vinyl alternatives, and when paired with proper underlayment and delivery planning it performs reliably in tough outdoor conditions.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this liner safe for koi and turtles?\u003c\/strong\u003e\u003cbr\u003eYes. The liner is certified by Guardian Systems Inc. and is marketed as fish and wildlife safe for koi, turtles, and aquaponics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it crack in cold weather?\u003c\/strong\u003e\u003cbr\u003eNo. Because it contains no plasticizers and is EPDM rubber, it remains flexible year-round and is less likely to crack than vinyl liners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it shipped and do I need special delivery details?\u003c\/strong\u003e\u003cbr\u003eThe product ships via freight truck; a lift-gate is not included, so provide accurate contact and delivery details to coordinate unloading.\u003c\/p\u003e","brand":"Anjon Manufacturing","offers":[{"title":"Default Title","offer_id":48618069295323,"sku":"B006SOHBBS","price":4302.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61RsniWo9aL._AC_SL1500_3bf4f2f0-e0d8-470d-a50e-dc40f759bfbd.jpg?v=1778494365","url":"https:\/\/gearmusthave.com\/products\/lifeguard-40-ft-x-100-ft-epdm-pond-liner-45-mil-durable-fish-safe","provider":"GearMustHave","version":"1.0","type":"link"}