I have two boxes of NOS red rubber tubing. The size is 11/32" OD x 1/4" ID. Each box has 35 feet. Both boxes were sealed but I opened 1 of them to take pictures and get the sizes. This tubing is not stiff but very rubbery. The tubing is in great shape.
$10 a box plus shipping
mikebird@lifeattheridge.net or 574-584-6744