The 5" Turbo Single Pulse Screw-In Jet is the threaded version of the large-format Turbo jet for Arctic Spas. Single Pulse means it delivers one focused stream of water — the strong, direct massage feel — at the 5" face size used in back and hip positions. Fits Arctic Spas built from 2008 onward (factory serial 110153 and up). Screw-in or pop-in? Check before you order. Twist your old jet out and look at the back: threads like a bottle cap = screw-in (this jet). A smooth collar that snaps in and out = pop-in — you want the 5" Turbo Pop-In instead. When to replace: The jet wobbles or spins loosely in its body, the face is cracked or faded, or flow feels weak even with the pump on high. Will this fit my spa? Yes, on 2008+ Arctic Spas with 5" Turbo screw-in jet bodies. Bring your old jet to one of our three Ontario showrooms for matching if you're unsure. How to install: No draining needed — unscrew the old jet counter-clockwise, thread the new one in clockwise until snug. Hand-tight only; never use tools on the jet face.