Comparison : Item # SS-4-TA-1-4W, Weld Adapter - Fractional (Swagelok Port to Pipe)
Item # SS-6-TA-1-8W, Weld Adapter - Fractional (Swagelok Port to Pipe)
Item # SS-8-TA-1-8W, Weld Adapter - Fractional (Swagelok Port to Pipe)
Item # SS-8-TA-1-12W, Weld Adapter - Fractional (Swagelok Port to Pipe)
Item # SS-12-TA-1-12W, Weld Adapter - Fractional (Swagelok Port to Pipe)