DURABLE MATERIAL: Crafted from solid brass and ceramic, these tap cartridges are high temperature resistant, wear-resistant, rustproof, and not prone to aging. They can withstand a maximum pressure of 3.5 kPa. LEAK PROOF: Equipped with a colorful rubber gasket, these replacement cartridges ensure a tight seal, preventing faucet leaks. They are suitable for single, double, hot, and cold taps, with a maximum operating temperature of 90°C. WIDE USE: The package includes 2 ceramic tap cartridges (1 blue and 1 red) and 2 screws. Ideal for faucets in bathrooms, kitchens, and garden pots, they solve the problem of frequent replacements. RED AND BLUE O-RINGS: The tap cartridges feature red and blue O-rings at the bottom for easy identification. The red and blue operate in opposite ways, so install according to your faucet's requirements. SIZE COMPATIBILITY: With a height of 50mm/1.97inch, a diameter of 2.38cm/0.94inch, 20 teeth, and a G1/2 thread, these cartridges are suitable for 70% of faucets. Check the size before purchase., Manufacturer: Lotsdonxia