Safety Relief Valve for Hot Water Systems

Safety Relief Valve for Hot Water Systems

DongHong Scientific water sample bottles are water coliform collection bottles without sodium thiosulfate, polystyrene, tamper seal, sterile,100/case.
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Product Details

Committed to becoming one of the most competitive suppliers of Filter Injector Needle, Centrifuge Tube Racks, Self-Standing Screw Cap Tubes in the world is our unremitting pursuit since the establishment of our company! Each of our products embodies our value, and the goal of everything we do is to provide excellent products and services to users. We are willing to listen and perfect the opinions of our customers to become the driving force for our rapid development. We will establish the enterprise culture of pioneering, innovation and continuous improvement.

DongHong Scientific water sample bottles are water coliform collection bottles without sodium thiosulfate for un-chlorinated water sources, specifically designed for water testing that includes total coliforms and E.coli testing.

The water sample bottles made of polystyrene are optically clear for easy sample viewing, the screw cap is made from polyethylene.

The sample bottles have an easily removable tamper seal with highly visible pull-tab.


Non-autofluorescent do not influence on coliform and E.coli testing.

Sterilization: electron beam processing

Package:100 coliform bottles per case, 50 bottles per tier, 2 tiers/case2(001)

Cat No.



Sodium thiosulfate












About us:

DongHong Scientific was founded in 2007. We are a global manufacturer and supplier of high quality laboratory essentials, biochemicals and reagent. 

Over the years, we have built highly professional manufacturing base, our cleanroom meet the highest industry standard. 

From the past to the present, and to the future, we are pursuing innovative and advanced products that can constantly benefit our science and environment. We are keen for feedbacks and responses about products or services from our customers. And our management team is keen to read your views and listen to you carefully.

Our Safety Relief Valve for Hot Water Systems is directly participated by experienced technicians from design to production and completion to ensure quality and strive for excellence. Good quality is factory' existence, Focus on customer' demand is the source of company survival and advancement. Product quality is highly praised by domestic and foreign customers.
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