April 2017 – LineGear represents Phos-Chek 3% AFFF Mil Spec C6 formula foam on GSA schedule 84. GSA Advantage is a convenient website to make government purchases. LineGear’s GSA contract number is GS-07F-9246S (Worldwide Sales Management Corp). USAF is now purchasing the new C6 formula for their systems. If you are looking for class A foam LineGear also represents high quality Fire-Trol 103b foam on GSA – produced by ICL (maker of Phos-Chek).