CalMaster™ Refillable Reservoir Style Leak Standard


The CM515.0-4101DAG/1 is a high depleting refillable reservoir style leak standard for those who have a supply of helium gas and can refill the reservoir regularly (about once a week). Perfect for those needing a leak standard on the go. This leak is light weight and comes with a built in presure gauge so you know when it is running low on helium.

  • PART NUMBER: CM515.0-4101DAG/1
  • LEAK RATE: 5 x 10-4
  • LEAK ELEMENT: Micro-Tube Capillary
  • GAS: Helium (100%)
  • RESERVOIR STYLE: LACO Reservoir (115 cc)
  • EST. DEPLETION RATE: 10.0%/week
  • DETAILS: Additional options: pressure gauge

LACO manufactures a wide variety of calibrated leak standard designs. Most leak standards ship within 3 weeks or less which minimizes your process down time. LACO leak standards feature:

  • Fast Delivery
  • Rugged and Reliable Leak Element
  • Both Standard & Custom Designs
  • Broad Range of Designs, Leak Rates, & Gases
  • Responsive Technical Support Staff

A2LA Accredited and NIST Traceable 
In addition all LACO leak standards are backed by our lifetime product warranty and include a NIST traceable, A2LA accredited calibration certificate to ISO 17025-2005 and ANSI Z540-1-1994 standards.


Innovative Leak Element
LACO calibrated leak standards feature our proprietary micro tube capillary leak elements. Learn more about the benefits of LACO's micro tube capillary leaks in the benefits tab.