A PPR double elbow (or double-seated elbow) is a plumbing fitting used to securely create two parallel, 90-degree branch outlets from a single pipeline. It is primarily utilized for installing hot and cold mixer valves and wall-mounted faucets
Guarantees the hot and cold water feeds are precisely aligned (e.g., standard 1/2" to 3/4" thread spacing) so the trim kit or faucet fits perfectly without forcing the pipes.