3/4" Brass Close Nipple x 1-3/8" | 2126X138

Used with brass, bronze, copper, steel, aluminum, and iron pipe. Operating pressure up to 1200 psi. Fair vibration resistance. Temperature range: -65°F to 250°F (-53°C to 121°C). Tighten approximately 2-1/2 turns past hand tight. Lead free fittings available in certain sizes.