Attributes . Pneumatic and Hydraulic Test Plugs Mfr. No. TP122, Mfr. No. TP123, Mfr. No. TP3, Mfr. No. TP34SB, Mfr. No. TP46, Mfr. No. TP58, Mfr. No. TP1012, Mfr. No. TP1416, Mfr. No. TP1824, Mfr. No. LTP23, Mfr. No. LTP34SB, Mfr. No. LTP46, Mfr. No. 420H44, Mfr. No. 420H45, Mfr. No. 420H46, Mfr. No. 420H47, Mfr. No. 420H48, Mfr. No. 420H49, Mfr. No. 420H50, Mfr. No. 420H51, Mfr. No. 420H52, Mfr. No. 420H53, Mfr. No. 420H54, Mfr. No. 420H55 . Names