Touch Screen Protector, VS Series and Varian 979

M4-VS-SP — $12.00

Peel and protect your touch screen from sharp objects and excessive wear.

Touch Screen Finger Guard, VS Series and Varian 979

M4-TSP301 — $71.80

Easy installation, robust protection from tools and accidents. Flips up for access touch screen during test process.

Helium Spray Probe Assembly, For Helium Bottles

M4­0981K0167 — $125.80 

(regulator not included) 

Compression Nut, 1-1/8” Test Port

PV-NUT-83488001 — $95.00

This custom nut will secure your test port against the leak detector cover for greater stability during testing.

Flapper Boxes, custom and standard

WS-FRB(series) — Pricing varies

Expertly fabricated by our partner lab. See the info sheet (.doc).

Oil Mist Eliminator

Varian — AT-9499395 — $334.50
Alcatel/Pfeiffer — PF-P107348 — $459.00

These compact oil mist eliminators attach to the outlet flange on your rotary vane vacuum pump, supplied with filter element, a KF25 centering ring and clamp.  Durable nylon housing. Intended for pumps working at pressures exceeding 10 mbar where the discharge of fine oil mist into the surrounding environment is undesirable.

Silencer, CKD, M5 thd, over 20 dB

PV-SL-M5 — $17.80

Used in Agilent VS series Leak Detectors

Silencer, CKD, 1/2 NPT, above 30dB

PV-SLW-15A — $18.80

For pumps and leak detectors, quiets and filters, protecting your equipment. Used in many older Varian model LD, Alcatel pumps, etc.


Workshop, Operator Training


Please request a quote

The Mass 4 Service Basic Operator Training Workshop is an intensive, one day workshop that provides practical, hands-on knowledge along with basic vacuum fundamentals. A solid understanding of basic vacuum system function, along with customized knowledge pertaining to your in-house leak detector(s) and processes to encourage each operator to become more proficient at leak check processes.

Recommended for Leak Detector Operators, Production Leads, Quality Personnel and Lab Technicians who use the leak detection equipment, or supervise leak detection processes.

Please call or email for current pricing and to set up your workshop. See the workshop syllabus (pdf).

For Lease

Leak Detector Lease, Agilent MD30




This Agilent VS MD-30 Leak Detector is a wide-range Helium Mass Spectrometer Leak Detector. A high performance leak detector, it uses a turbo molecular high vacuum pump and external TS620 dry scroll pump, mounted on a convenient 4 wheeled cart. The simplified operator interface is adaptable to many applications with ease. For specs on this leak detector please refer to the Agilent Brochure. This MD-30 is configured in 115 VAC mode. Transportation and setup not included. See brochure (pdf).

Leak Detector Lease, Varian 959Turbo, TS320 Dry




The dependable, no frills Varian leak detector has a V-70 turbo for 9-scale sensitivity and a TS320 Dry Scroll Pump on a 4-wheel cart. A NIST Certified external leak is provided with this unit. It is configured in 110VAC mode. For specs on this leak detector. See 959 brochure (pdf).

Transportation and setup not included. Please call for a complete quote.

For Sale

NEW Leak Detector, Agilent VS Series, MD30, MR15, PD03

VS Series

Please request a quote


Let us help you determine which model is best suited to your application. These efficient, dependable units are easy to operate and maintain. With sensitivity into the -12 range, automatic temperature adjustment, automatic calibration, and automated cycling these leak detectors are versatile and robust enough to meet your applications needs. See brochure (pdf).

Refurbished Leak Detector, 959T, TS320 Dry



Fully refurbished, includes V-70 turbo for 9-scale sensitivity, TS320 Dry Scroll Pump, 4-wheel cart and NIST Certified external leak. It is configured in 110VAC mode. For specs on this leak detector (link to 959 FAQ .pdf)

This unit comes with our 6-month warranty. Transportation and setup not included. Please call for a complete quote.