This is an O-ring kit for the 3rd generation TST Flow Thru sensors. When you change the batteries in your Flow Thru sensors you will need this kit to replace the O-rings, screws, and valve stem gaskets if needed. This kit also includes a Philips screwdriver that is the perfect size for the screws that you will need to remove to replace the batteries. This kit has all the replacement pieces for 6 sensors. If you are changing the batteries in more than 6 sensors then order as many kits as you will need to get to your number. This O-ring kit includes:
* 6 O-Rings
* 6 Valve Stem Gaskets
* 12 Replacement Screws for the Battery Cover
* 6 Brass Hex Nuts
* 1 Philips Screw Driver