FTCo. 3/16" Aquarium Soft Plastic Airline Tubing (0.5 m / 19.7 in) x 10 Clear PVC 3/16" airline tubing Designed to be used in both fresh and salt water environments Extended wear and tear Win Monthly $100 AMEX Gift Card by simply making a purchase from Faremax Trading Co. The more orders you place the more chances to win you will have. A winner for current month will be chosen in the beginning of the next month.