Thread protectors are needed for Survivair SCBA, Scott SCBA, Msa SCBA, ISI SCBA, Draeger, SCBA, Interspiro SCBA, Cairns SCBA and North SCBA. Fire fighters swear by THREAD SAVERS' ® ability to protect their soft aluminum cylinder valve threads.
"THREAD SAVER®" provides protection by keeping dirt, dust, mud, grit, sand, snow, ice and water away from your LP or HP cylinder valve threads and valve orifice.