Jenny K1S-30UMS is a 1 HP simplex two-stage reciprocating air compressor delivering 7.4 SCFM on a 50-gallon tank, wired 115V single-phase, oil-lubricated, weighing 255 lbs, with a maximum operating pressure of 40 PSI. The K-series is Jenny’s dedicated fire-sprinkler supervisory air compressor line — designed to maintain low-pressure supervisory air in dry-pipe and pre-action fire suppression systems, not general shop air. The 40 PSI maximum aligns with NFPA 13 supervisory air requirements. SKU K1S-30UMS. Price verified at $2,029.99 (Zoro, 2026-05-21). Buyers purchasing for general shop air should note the 40 PSI ceiling is below standard tool requirements (90 PSI).
Where this sits in the catalog
Histograms below: highlighted bar marks this unit’s bucket.
- Catalog
- 1655 units
- Peer class
- 12 · 1 HP
- SCFM @ 1 HP7.4cfm2median 3.917+92.2% vs. median
- Average price$2,128$129median $871$3k+144.2% vs. median
- CFM per HP7.4cfm/hp2.2median 417.3+85% vs. median
- Price per CFM$254$/scfm$13median $248$1,009+2.1% vs. median
Price history
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