Diamond® RealSeal™ PETG Square Media Bottles protect media, laboratory reagents, and buffers during storage and transport. Perfect for cold storage, the PETG bottles remain shatterproof even at -40ºC. Low transmission rates of O2 and CO2 maintain optimum pH values for solutions in storage. Diamond RealSeal PETG bottles include white HDPE caps with integrated seal rings and matching semi-buttressed threads for leakproof performance to 95kPa. Bottles are provided sterile and ready to fill with tamper evident shrink bands in tray packs for convenience.The Diamond® RealSeal™ Advantage:Medical Grade Resins to Meet Demanding Requirements• USP Class VI for pharma and research applications• FDA CFR-21 compliant for food contact• Free of heavy metals and RoHS compliant• BPA and phthalate freeManufactured in a Controlled Environment• Produced and packaged in ISO Class 8 Cleanroom• ISO 9001 and ISO 13485 production facilityLeakproof, Linerless Caps for Secure Closure• Engineered with semi-buttressed threads for superior performance• Integrated seal ring molded into cap to prevent leaks• Maintains seal integrity at pressures up to 95 kPaSterile and Ready for Filling• Gamma sterilized to SAL 10-6• Tamper evident shrink bands ensure sterility before filling• DNase / RNase free• Non-pyrogenic and non-cytotoxic• Molded graduation marks for reference during fillingPETG Bottle Material Protects Contents During Storage• Limits transmission of O2 and CO2 to protect pH sensitive solutions• Shatterproof even at -40ºC• Temperature range -80ºC to 60ºC