Welcome to our store! 1. [Thread] Utilizing sophisticated production technology and fine workmanship, the water stop connector features male and female G1/4in threads. 2. [Fixing Method] With an internal hex M8 fixing method, this G1/4in male to female extension fitting is very simple and easy to install. 3. [Electroplating Treatment] Crafted from black-coated brass with electroplated surfaces, this hard pipe fitting is durable and has a long service life. 4. [2 Colors Available] Choose from two colors: black and silver, to suit your preferences. 5. [Specification] The thread length of the pipe extension fitting is approximately 4 mm/0.16 inches, and the height is approximately 40 mm/1.57 inches. Item Type: Extension Fitting Material: High-Quality First Class Brass Model: BYCZT-C40 Specification: Length: Approx. 45 mm / 1.8 inches (Includes Thread), Diameter: Approx. 17.8 mm / 0.7 inches Thread: Female G1/4in, Male G1/4in Accessories: White Silicone Sealing Ring (Installed), Black Sealing Ring (Spare) (White is a long-life silicone sealing ring, Black is a high-temperature resistant sealing ring) Fixing Method: Internal Hex M8 Fixed Surface Treatment: Electroplating, Electrophoresis 1 x Extension Fitting 1 x Sealing Ring Satisfaction Guarantee: Customers are our top priority. If you find any issues with the product, please contact the seller immediately. We strive to provide satisfactory customer service.