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7 Range Calibrated Gas Leak 
Diffusion Style Helium Calibrated Leak
10-7 cc/second (Helium) Range
Includes Shutoff Valve, NIST Traceable Certificate 
NW25 Port
Manufactured by LDS Vacuum for over 30 years

Equivalent To Agilent (Varian) PN: F8473321
LDS Part Number: 0506-1591-V-NW25

• 10-7 cc/second (Helium)
• E-7 (10-7) Range Helium Calibrated Gas Leak
• NW25 (KF25) Compression Port

F8473321 Equivalent
Varian Price: $886.00LDS Price: $505.00
Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.

There is a global helium shortage. Each time an MRI is performed, helium is used. Please rethink your helium balloon purchase.