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Part Number Name Stopcock Bore Size (mm) Plug Size (mm) O-Ring Size McMaster-Carr O-Ring Part Number Case Qty Case Price, USD Quantity Add to Cart
821001-0002 Straight Bore Stopcock Plug, PTFE 2 11/25 109 9464K44 1 $15.62
41500F-2 PTFE Plug-Style Stopcock 2 11/25 109 9464K44 12 $775.54
821001-0004 Straight Bore Stopcock Plug, PTFE 4 15.2/30 5-613 9464K18 1 $17.94
41500F-4 PTFE Plug-Style Stopcock 4 15.2/30 5-613 9464K18 12 $1,108.89
41500F-6 PTFE Straight Stopcock Plug 6 16/35 111 9464K24 12 $1,652.28
821001-0006 Straight Bore Stopcock Plug, PTFE 6 16/35 111 9464K24 1 $26.32
41502T-2 High Temperature PTFE Straight Stopcock Plug 2 11/25 109 9464K44 1 $73.02

     PTFE stopcock plug has a 1:5 taper

·         PTFE  is chemically-resistant and self-lubricating

·         41502T-2 is a high-temperature PTFE plug