Product description
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Technical Products #12 blow-thru plug is a rubber expansion winterizing plug with a blow-thru valve stem, so you can seal the opening and still blow air through the plug. Technical Products rates the #12 at 2.42" in diameter for 2" fitting. Technical Products builds its plugs from rubber, stainless steel and heavy duty nylon, so nothing in the plug corrodes sitting in a line all winter.
Specifications
| Brand | Technical Products |
| Plug Size | #12 |
| Fits | 2" fitting |
| Rated Diameter | 2.42 in. |
| Style | Rubber expansion plug with blow-thru valve |
| Valve | Blow-thru valve stem |
| Wing Nut | White nylon |
| Construction | Rubber, stainless steel and heavy duty nylon |
| Use | Winterizing pool returns and plumbing lines |
| Sold As | Each |
Good to Know
What does the blow-thru valve do?
It lets air pass through a seated plug, so you can seal an opening and keep blowing the line out without pulling the plug. A plug without a valve is set after the line is already clear.
Pipe, fitting or tube: which one do I have?
A pipe size means the plug goes straight into the open end of the pipe itself. A fitting is the socket or threaded opening a pipe slides into, which is wider than the pipe of the same nominal size, so it takes a bigger plug. Tube sizes are for thin-wall tubing. If you are not sure, measure the inside of the opening and compare it with the rated diameter in the specs.