TV short tube 2"-to-SCT adapter (ACS0004) features brass compression ring. This adapter is about 1/2" shorter (1.55") than standard SCT adapters, allowing some 2" eyepieces to achieve focus with f/6.3 focal reducers. This has only been used three or four times and is virtually like new in original box.
$41 money order, bank check or PayPal (add $1.50).
Price includes priority mail CONUS. Thanks for looking!