Arista Manostat 72 370 000 Varistaltic Pump 24 720 Rpm Reversible — High-Performance Peristaltic Pump for Semiconductor and Lab Use (Arista)

How Much Does Manostat 72-370-000 Varistaltic Pump, 24-720 RPM, Reversible, Stackable - 3348356 Cost in 2026?

As of July 2026, the Arista Manostat 72-370-000 Varistaltic Pump is priced in the range of $99–$99, depending on condition and sourcing. Units in condition grade B, which is typical for used or refurbished models, are commonly available through vendors like Ferrotec and Axus Technology. These refurbished units typically offer savings of 40–60% compared to new units, which can cost upwards of $250–$300 from Arista or authorized resellers.

The cost of failure for a non-functional or low-performing pump can be significant. In semiconductor or lab environments, a failed pump can lead to downtime of 12–24 hours, with associated costs of $1,500–$3,000 per hour in some high-volume production lines. That’s why sourcing a reliable used unit is so critical.

However, it’s important to note that not all used pumps are equal. Units with over 10,000 operating hours or those not properly maintained can fail prematurely. Always verify the condition and maintenance history before purchase.

Manostat 72-370-000 Varistaltic Pump, 24-720 RPM, Reversible, Stackable - 3348356 Specifications and Compatible Tools

The Manostat 72-370-000 is a peristaltic (varistaltic) pump with a speed range of 24–720 RPM and reversible operation. It is stackable, making it ideal for multi-pump configurations in semiconductor processing or lab automation. The pump is typically rated for up to 10,000 operating hours before requiring maintenance or replacement.

This model is commonly used in Arista’s older fluid control systems, particularly in systems from the early to mid-2000s. It is compatible with Arista’s Manostat 72 series controllers and other legacy systems using peristaltic pump modules.

However, it is not compatible with newer Arista models such as the Manostat 72-380-000, which uses a different drive mechanism. Attempting to use the 72-370-000 in a 72-380-000 system can lead to motor failure and controller damage, with repair costs often exceeding $1,000.

Always verify compatibility with your specific system before installation. Failure to do so can result in downtime and unnecessary repair costs.

What to Check Before Buying a Used Manostat 72-370-000 Varistaltic Pump, 24-720 RPM, Reversible, Stackable - 3348356 in 2026

1. Operating Hours and Maintenance History: Units with more than 10,000 hours of use are high-risk. Ask for a log of preventive maintenance and rotor replacements.

2. Motor and Drive Condition: Run the pump at full speed (720 RPM) and check for vibration or noise. A healthy motor should operate smoothly. If the motor draws more than 1.2 amps at idle, it may be failing.

3. Seal Integrity: Inspect the pump head for wear or leakage. A cracked or worn seal can lead to fluid contamination and system failure, costing $500–$1,000 in cleanup and downtime.

4. Controller Compatibility: Ensure the pump is compatible with your existing controller. If the pump is from a 2003 or earlier system, it may not work with newer controllers without an adapter.

5. Reject If: The pump fails a 24-hour continuous operation test at 500 RPM. This is a strong indicator of impending failure and should be a hard reject.

Buying a used unit that fails shortly after installation can cost $2,000–$4,000 in lost production and emergency replacement. Always test before installation.

FAQ

Q: Can I use the Manostat 72-370-000 with a Manostat 72-380-000 controller?
A: No. The 72-370-000 is not compatible with the 72-380-000 controller due to different drive mechanisms. Attempting to use it can cause controller failure, with repair costs often exceeding $1,000.

Q: Should I replace the pump head if I’m buying a used 72-370-000?
A: Yes, especially if the unit has over 8,000 hours of use. Pump heads typically last 10,000–12,000 hours. Replacing it upfront costs around $150–$200 and can prevent costly failures later.

Q: What is the typical lifespan of the Manostat 72-370-000?
A: With proper maintenance, the pump can last up to 10,000 operating hours. Beyond that, performance degrades, and failure becomes more likely.

Q: How does the 72-370-000 compare to the 72-380-000 in terms of performance?
A: The 72-380-000 offers better precision and higher RPM capabilities (up to 1,000 RPM). However, the 72-370-000 is more widely available used and offers better value for older systems.

Q: Can I use a third-party pump head with the 72-370-000?
A: Only if it is specifically rated for Arista Manostat 72 series pumps. Using an incompatible head can lead to seal failure and fluid leaks, which can cost $500–$1,000 to clean up.