For all standard heating valves: The heater exhaust key has a square socket of 5 mm. With this, you can quickly and easily drain almost any heater. Easy to use: place the sturdy exhaust key on the valve, gently rotate it and flip it over....
For all standard heating valves: The heater exhaust key has a square socket of 5 mm. With this, you can quickly and easily drain almost any heater. Easy to use: place the sturdy exhaust key on the valve, gently rotate it and flip it over....
For all standard heating valves: The heater exhaust key has a square socket of 5 mm. With this, you can quickly and easily drain almost any heater. Easy to use: place the sturdy exhaust key on the valve, gently rotate it and flip it over....
For all standard heating valves: The heater exhaust key has a square socket of 5 mm. With this, you can quickly and easily drain almost any heater. Easy to use: place the sturdy exhaust key on the valve, gently rotate it and flip it over....