SharkBite SS3088FLEX18LF Water Heater Connector, 3/4" X 3/4" X 18", Brass INSTALLS IN SECONDS: Water heater flex hose line connections require no special tools, no soldering, or glue. Just push to create a watertight seal. COPPER, PEX, CPVC: SharkBite water heater line plumbing fittings fit Copper, PEX, CPVC and PE-RT. Use for both hot and cold water heater supply lines QUALITY: Only SharkBites quality and performance is field-proven with more than 550 million connections. SharkBite is the only push-to-connect brand than can ensure a clean, leak-free connection CERTIFIED: SharkBite fittings are certified to 200 PSI and 200F and can be reused up to four times in potable and hydronic heating water distribution RESIDENTIAL and COMMERCIAL: SharkBite water heater supply line connectors meet the same standards for commercial and residential plumbing applications. Inspector friendly for a peace of mind.