New EK Perfect Seal Compression Fitting (PCS Fitting) is a real high flow fitting. Made of brass with quality o-ring. Surface is coated with quality finish that is used for automotive industry.

A unique design with side imprinted EK logo will give your watercooling system a higher value.

Thread:	G1/4
Outer diameter of fitting:	22-22,2mm
Length:	27mm
G1/4 thread length:	4.5mm
Inlet hole ID:	11mm
For tubes:
Metric:	ID 12mm; OD 16mm ID 11,1mm; OD 15,9mm
Inch:	ID 15/32"; OD 5/8" ID 7/16", OD 5/8"

08-28-2022
Reviewer: Luscious (7)
Been using these for years and have yet to see one fail. And unlike newer fittings that require an allen key to secure this lets you grab the base with fingers or needle nose pliers to help tighten down the head or loosen a stubborn one. For flexible tubing jobs these really are the best compression fittings you can get and will continue to be the ones I choose to use. Thank you FrozenCPU for keeping these in stock!