I've got 2 GP fuelers...one for a Saito 180 on a Cap 231 EX, and one on an OS .61 FX in a Lazer....Both of them have been recycled from previously crashed or mothballed planes, so they're easily a number of years old.

Don't get me wrong... I'm a fan of the fuel dots too nd use them on a plane with a YS on it. I just hate the price of the Dots and T's and have found a great alternative. I use the T's and plugs that are for Drip Irrigation. THey seem to be glow fuel resistant as I put some in a jar of fuel, and after a week of soaking the fuel had not changes color, and the fittings were just like new with no softening or becoming brittle. Been using them all summer with no probs.... And at Home Depot you can get 10T's and 20 plus for about $3.00.