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As of January 4, 2014 it has been illegal to introduce products into commerce for drinking water applications UNLESS they are tested and meet the new version of the lead-free standard
Standard rubber compounds used in gaskets and seals in potable water applications must be proven to prevent leaching of harmful contaminants prior to installation
Certification to NSF-61 provides assurance to a highest level that American Biltrite rubber EPDM NSF gasket strips supplied by Sterling Seal & Supply is safe for use in drinking water service
SPECIFICATION ASTM D2000; Hardness Shore A 75 +/- 5, ASTM D1330 Grade 1 & 2, POLYMER: Ethylene-Propylene (EPDM); ASTM D412 TENSILE (PSI): 1500 min.; ULTIMATE ELONGATION(%) 250 min. ASTM Grade
Actual Size:18" ID X 21.62" OD