AQUISTM
Spray/Nitro Guns

Provides suitability for high purity & corrosive media applications including Deionized Water & Nitrogen Air.
Virgin PVDF with Modified PTFE Sealing, No Elastomers.

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Throttle Master Needle ValvesThrottle Master Needle Valves

THROTTLE MASTERTM
Needle Valves

Precision Flow Control of High Purity & Corrosive Fluids

PVC, CPVC, Polypropylene, & PVDF

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Throttle Master Needle Valves

TUFF GUARDTM
Gauge Isolators

Protect & Isolate Instruments from Corrosive & High Purity Fluids.
PVC, CPVC, Polypropylene, & PVDF

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Throttle Master Needle Valves

Mini TUFF GUARDTM
Gauge Isolators

Provides Total Isolation of Instruments from Corrosive and Ultra Pure Fluids in an Ultra Compact Size.
PVC, CPVC, Polypropylene, & PVDF

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Throttle Master Needle Valves

DURALINETM
Laboratory Faucets

Introducing the most "Durable" non-metallic Lab Faucet in the Industry for POU deionized water and chemical dispensing applications.
PVC, Naural Polypro, & HP PVDF

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Throttle Master Needle Valves

SERIES LG
Gooseneck Lab Faucets

Introducing the most "Durable" non-metallic Lab Faucet in the Industry for POU deionized water and chemical dispensing applications.
PVC, Natural Polypropylene, & PVDF

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Throttle Master Needle Valves

Product News

Marquest is pleased to announce the launch of
AQUISTM   DI/Nitro Spray Guns.

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Product Categories (PVC, CPVC, Polypropylene, & PVDF)

Browse Marquest products using our simple to use responsive online catalog.

Online Catalog

Download 2D & 3D Cad files in over 120 different formats using our MQCAD center.

Welcome to Marquest Scientific!

Quality Flow Solutions in PVC, CPVC, Polypropylene & PVDF.

Family owned and operated since 1978, Marquest Scientific’s roots in ThermoPlastic injection molding of corrosion resistant and high purity plastics began in the late 1950s, when our founder brought over the first reciprocating screw type injection molding machine to the USA from Ankerwerk, a company based out of Nuremberg, Germany. It was this machine that solved the problem of molding highly rigid PVC industrial parts and gave our founder the confidence to mold the industry's first all plastic ball valve in 1964. This spirit of innovation and expertise is what drives our company today and is why you can expect Marquest Scientific products to be delivered to you at the highest quality and best value in the industry.

Locate your nearest Authorized Marquest Scientific Distributor.

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