ProSource 18" (45cm) Tip Extension w/ Guard - 0556076 or 556076 G-Thread Airless Gun Extension Wagner Titan Spraytech and others New 18" (45cm) tip extension with guard for airless spray guns. Has 7/8" male and female ends. G-Thread. Aluminum construction. Rated at 3300psi operating pressure. Pole comes with 1 seal attached at female end. Guard has 1 rubber seal & 1 metal seat (guard color may vary between red or black).