27753-002 Hydrometer API 10/21, +20/130F; 7-1/2"
$30.05
35740-001 Hydrometer API 10/45, +20/130F; 8"
$33.40
35740-002 Hydrometer API 45/90, +20/130F; 8"
35742-001 Hydrometer API 10/30, +20/130F; 8"
35742-002 Hydrometer API 20/40, +20/130F; 8"
35742-003 Hydrometer API 30/50, +20/130F; 8"
35742-004 Hydrometer API 40/60, +20/130F; 8"
35742-005 Hydrometer API 50/70, +20/130F; 8"
35742-006 Hydrometer API 60/80, +20/130F; 8"
35742-007 Hydrometer API 70/90, +20/130F; 8"
35742-008 Hydrometer API 80/100, +20/130F; 8"