|  |  Easily identifiable 
                                            due to their distinctive yellow colour | 
                                       
                                        |  | 
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                                        |  | 	
                                            High strength and stiffness to withstand 
                                            internal pressure and external loads. | 
                                       
                                        |  | 
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                                        |  | 	
                                            Resistance to environmental stress 
                                            cracking ensuring long-term resistance 
                                            to internal pressure, external loads 
                                            and harsh environments | 
                                       
                                        |  | 
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                                        |  |  Flexible & Easy 
                                            to install | 
                                       
                                        |  | 
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                                        |  |  Impact resistance 
                                            for lower cost installation, narrower 
                                            trenches (reduced excavation), and 
                                            fewer expensive fittings. | 
                                       
                                        |  | 
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                                        |  |  Heat fusion joining 
                                            for strong, lifetime leak-tight, fully 
                                            restrained joints. | 
                                       
                                        |  | 
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                                        |  | Remains flexible 
                                            at sub-freezing temperatures. | 
                                       
                                        |  | 
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                                        |  | Retains long-term 
                                            strength at elevated temperatures. | 
                                       
                                        |  | 
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                                        |  | Does not rust, rot 
                                            or corrode or support biological growth. | 
                                       
                                        |  | 
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                                        |  | Retains low resistance 
                                            to liquid flows for reduced pumping 
                                            and operating costs. |