However it's 1" in diameter so they are using it as a guide to run a new plastic gas line through it. 

But you must go to a retailer to order, they do not sell online.Note the wood not plastic corner brackets, and the sides dovetailed into the face frame.

They didn't have plastic or even steel.

We've provided bags (3mil contractor type plastic bags), boxes, tape, and a marking pen before.

The old owner just had wood covered with a piece of plastic.

On studying the wire, I found two places where the plastic covering is broken.

I recently started to notice that one of my tenants was dumping the trash from her car (Newport cig. boxes, candy wrappers, plastics junk , Mcdonalds bags, etc.) in the same spot in the driveway of my 3 family.

I Use 9 in. paper and tape around top and bottom trim and plastic on the walls and floor to prevent overspray.

There was what looked like a 2 foot diameter plastic barrel in the ground which was the reservoir.

The over spray will find its way thru tape and plastics I promise you.