Test Kit The test kit gives you everything you need to T the front and rear bags together and air them up using two schrader valves with shop air. A simple solution to test your system before purchasing an air management system. 2 - 3/8 ptc T fittings 2 - Schrader Valves 1 - Pneumatic Sealant Test Kit + Airbag Fittings This kit includes everything in the test kit and also adds four elbow fittings for your air bags. 4 - 1/2 npt x 3/8 ptc 90s 2 - 3/8ptc T fittings 2 - Schrader Valves 1 - Pneumatic Sealant Dual Tank Kit The dual tank kit will provide you with all necessary fittings to fun a dual tank setup. This kit is designed to go hand in hand with my sim and the dual tank saddle kit. 2 - 3/8 npt male to 3/8 npt female 4 - 1/4 npt plugs 1 - 3/8 npt plug 3 - 3/8 npt to 3/8 ptc elbow 2 - 1/4 npt drain 1 - Pneumatic Sealant Universal Kit 3/8 (Bags and Tank) 4 - 1/2 npt x 3/8 ptc 90s 1 - 3/8 npt to 3/8 ptc elbow 2 - 1/4 plug 2 - 3/8 plug 1 - 3/8 nipple 1 - Pneumatic Sealant Airbags Only 4 - 1/2 npt x 3/8 ptc elbow 1- Pneumatic Sealant