Repalcement septum for Tedlar bag TDLC31Z Back Catalog number: TDLC-S Availability: In the manufacturer's stock Price on request - + Recommended U-COV35 O-Ring, low-emission, size 035,pk10 Price on request C-TO17KIT TO-17 Starter Kit Price on request M-SPGSC-120 Adjustable sprung spacer, for M-CTE120I,pk 6 Price on request