... roll EPDM insluation with 13mm EPDM Insulated Flexible Solar Water Heater HoseFeatures: 1. Widely used for solar thermal connections, specially for heat pumps . ... ,high tensile strength, offering protection during installation, UV and bird attack.--Fast installation with no joints in between connections--Flexible ... -- Wide range of Ms58 brass fittings EPDM Insulated Flexible Solar Water Heater Hose