Heater Core Flush Tool, Cooling System Backflush for 1/2" 5/8" 3/4" Hoses

About this item

• Heater Core & Radiator Backflush: This tool helps clear built-up rust, sludge and debris from heater cores and radiators. The reverse water flow helps dislodge trapped buildup in the cooling system and supports proper flow after flushing.
• Stepped Aluminum Adapter: The aluminum adapter fits 1/2", 5/8" and 3/4" heater hoses for wide vehicle compatibility. Aluminum resists corrosion and provides a secure connection during routine cooling system maintenance on most cars, trucks and SUVs.
• 3/4" GHT Garden Hose Connection: Plastic connector body features a standard 3/4" GHT (garden hose thread) fitting that attaches directly to a standard garden hose. No air compressor or special tools required. Simply attach the garden hose and begin the backflush process for your vehicle's cooling system.
• Flow Control Valve: The built-in shut-off valve lets you adjust water flow during backflushing. Helps manage water pressure to support heater core seals and hose connections during the maintenance process.
• Simple Setup, No Disassembly: Disconnect the heater hose, attach the stepped adapter, connect your garden hose and adjust the valve. Works without removing the heater core or radiator to complete this routine maintenance task.